User Guide

User Guide
Removing and Installing Parts: Dell XPS 420 Owner's Manual

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Removing and Installing Parts

Dell™ XPS™ 420 Owner's Manual

  Before You Begin

  Removing the Computer Cover

  Inside View of Your Computer

  System Board Components

  Memory

  Cards

  Drive Panels

  Drives

  Hard Drive

  Floppy Drive

  Media Card Reader

  CD/DVD Drive

  Processor Airflow Shroud

  Fans

  Processor

  System Board

  Power Supply

  Front I/O Panel

  Coin-Cell Battery

  Replacing the Computer Cover



Before You Begin

This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:

Recommended Tools

The procedures in this document may require the following tools:

  • Small flat-blade screwdriver

  • Small Phillips screwdriver

  • Small plastic scribe

Turning Off Your Computer

NOTICE: To avoid losing data, save any work in progress and exit all open programs before turning off your computer.
  1. Shut down the operating system:

    1. Save and close all open files and exit all open programs.

    1. In Microsoft® Windows Vista™, click the Windows Vista Start button, , in the lower-left corner of the desktop, click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down.

The computer turns off after the operating system shutdown process is complete.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: When working inside the computer, be aware that the processor heat-sink assembly, power supply, graphics card, and other components may be very hot during normal operation. Be sure that they have sufficient time to cool before you touch them.
NOTICE: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.
  1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.

  2. Turn off your computer (see Turning Off Your Computer).

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
  1. Disconnect all telephone or network cables from the computer.

  2. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

Removing the Computer Cover

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
  1. Follow the procedures in Before You Begin.

  2. If you have installed a security cable, remove it from the security cable slot.

NOTICE: Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desk top space.
NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the surface on which it is resting.
  1. Lay your computer on its side with the computer cover facing up.

  2. Pull back the cover release latch on the top panel.

1

cover release latch

2

computer cover

3

hinge tabs (3)

  1. Locate the three hinge tabs on the bottom edge of the computer.

  2. Grip the sides of the computer cover and pivot the cover up.

  3. Lift the cover away and set it aside in a secure location.


Inside View of Your Computer

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.

1

power supply

2

system board

3

hard drive (2)

4

card fan

5

media card reader (optional)

6

floppy drive (optional)

7

CD or DVD drive (2)

8

processor fan

9

processor airflow shroud and processor (processor is below the processor shroud and heat sink)


System Board Components

1

memory module connectors (1, 2, 3, 4)

2

battery socket (BATTERY)

3

SATA Connectors (2) (SATA0, SATA1)

4

front panel I/O connector

5

main power connector (POWER)

6

SATA connectors (3) (SATA2, SATA3, SATA4)

7

FlexBay USB connector (9 pins)

8

clear CMOS jumper (RTCRST)

9

password jumper (PSWD)

10

PCI Express x16 card connector

11

PCI Express x8 card connector (x4 electrical)

12

PCI Express x1 card connector

13

PCI card connectors

14

floppy drive connector (FLOPPY)

15

internal USB connector connecting to FlexBay device

16

rear fan connector or card cage fan connector (FAN_CARD_CAGE)

17

Processor fan connector (FAN_CPU)

18

processor connector

19

processor power connector (12VPOWER)

 

 

 

 


Memory

You can increase your computer memory by installing memory modules on the system board.

Memory Overview

  • Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. See the label in the upper-right corner of the module to determine the module's capacity.

NOTE: Always install memory modules in the order indicated on the system board.

The recommended memory configurations are:

    • A pair of matched memory modules installed in connectors DIMM_1 and DIMM_2

or

    • A pair of matched memory modules installed in connectors DIMM_1 and DIMM_2 and another matched pair installed in connectors DIMM_3 and DIMM_4

  • If you install mixed pairs of DDR2 667-MHz (PC2-5300)and DDR2 800-MHz (PC2-6400) memory, the modules function at the slowest speed installed.

  • Be sure to install a single memory module in the DIMM_1 connector, the connector closest to the processor, before you install modules in the other connectors.

If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your computer may not start properly. You should install your original memory modules in pairs either in connectors DIMM_1 and DIMM_2 or connectors DIMM_3 and DIMM_4.

NOTE: Memory purchased from Dell is covered under your computer warranty.

Addressing Memory With 8-GB Configurations

Your computer supports a maximum of 8 GB of memory when you use four 2-GB DIMMs. However, the amount of memory available to the operating system is less than 8 GB. This is because certain components within the computer require address space in the 8-GB range; and any address space reserved for these components cannot be used by computer memory.

NOTE: 8 GB memory is available only if you ordered an operating system that supports 64 bits. If you ordered a system that supports only 32 bits then the memory available is 4 GB.

Installing Memory

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.

  4. Press out the securing clip at each end of the memory module connector.

1

memory slot on system board

2

memory slot

  1. Align the notch on the bottom of the module with the crossbar in the connector.

1

cutouts (2)

2

memory module

3

notch

4

crossbar

NOTICE: To avoid damage to the memory module, press the module straight down into the connector while you apply equal force to each end of the module.
  1. Insert the module into the connector until the module snaps into position.

If you insert the module correctly, the securing clips snap into the cutouts at each end of the module.

  1. Replace the computer cover.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

  2. Right-click the My Computer icon, then click Properties.

  3. Click the General tab.

  4. To verify that the memory is installed correctly, check the amount of memory (RAM) listed.

Removing Memory

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Press out the securing clip at each end of the memory module connector.

  4. Grasp the module and pull up.

If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.


Cards

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.

Your Dell™ computer provides the following slots for PCI and PCI Express cards:

  • Three PCI card slots

  • One PCI Express x1 card slot

  • One PCI Express x16 card slot

  • One PCI Express x8 card slot (electrically configured as an x4)

PCI Cards

  • If you are installing or replacing a PCI card, follow the procedures in the next section.

  • If you are removing but not replacing a PCI card, see Removing a PCI Card.

  • If you are replacing a PCI card, remove the current driver for the card from the operating system.

  • If you are installing or replacing a PCI Express card, see Installing a PCI Express Card.

  • If you are removing but not replacing a PCI Express card, see Removing a PCI Express Card.

Installing a PCI Card

NOTE: Dell offers an optional customer kit for Audigy II and IEEE 1394 PCI add-in-cards that includes a front-mounted IEEE 1394 connector.
NOTE: The PCI connector adjacent to the hard drive can accommodate a card 5.5 inches in length. Inorder to accommodate a longer card (upto 10.5 inches) remove the hard-drive bracket.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

1

release tabs (2)

2

card retention door

3

alignment bar

4

alignment guide

5

filler bracket

 

 

  1. Push the two release tabs on the card retention door from the inside to pivot the door open. Because the door is hinged, it will remain in the open position.

1

release tab

2

card retention mechanism

3

card retention door

  1. If your computer includes a card retention mechanism to secure the x16 card, press the release tab downward gently and then pivot the mechanism upward to access the card slots.

  2. If you are installing a new card, remove the filler bracket to create a card- slot opening. Then continue with step 7.

  3. If you are replacing a card that is already installed in the computer, remove the card.

If necessary, disconnect any cables connected to the card. Grasp the card by its top corners, and ease it out of its connector.

  1. Prepare the card for installation.

See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer.

CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.
  1. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.

1

fully seated card

2

not fully seated card

3

bracket within slot

4

bracket caught outside of slot

5

alignment bar

6

alignment guide

  1. Before you close the card retention door, ensure that:

    • The tops of all cards and filler brackets are flush with the alignment bar.

    • The notch in the top of the card or filler bracket fits around the alignment guide.

1

card retention door

2

release tabs (2)

  1. Close the card retention door by snapping it into place to secure the card(s).

NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.
  1. Connect any cables that should be attached to the card.

See the documentation for the card for information about the card cable connections.

NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer.
  1. If you replaced a card that was already installed in the computer and you removed the retention mechanism, reinstall the retention mechanism.

  2. Before replacing the card retention mechanism, ensure that:

    • The tops of all cards and filler brackets are flush with the alignment bar.

    • The notch in the top of the card or filler bracket fits around the alignment guide.

  3. Snap the card retention mechanism into place, securing the PCI card.

  4. Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

  5. If you installed a sound card:

    1. Enter system setup, select Integrated Audio Controller, and then change the setting to Off.

    1. Connect external audio devices to the sound card connectors. Do not connect external audio devices to the integrated microphone, speaker/headphone, or line-in connectors on the back panel.

  6. If you installed an add-in network adapter and want to disable the integrated network adapter:

    1. Enter system setup, select Integrated NIC Controller, and then change the setting to Off.

    1. Connect the network cable to the add-in network adapter connectors. Do not connect the network cable to the integrated connector on the back panel.

  7. Install any drivers required for the card as described in the card documentation.

Removing a PCI Card

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. If you are removing the card permanently, install a filler bracket in the empty card-slot opening.

If you need a filler bracket, contact Dell (see Contacting Dell).

NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer.
NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  1. Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

  2. Remove the card driver from the operating system.

  3. If you removed a sound card:

    1. Enter system setup, select Integrated Audio Controller, and then change the setting to On.

    1. Connect external audio devices to the audio connectors on the back panel of the computer.

  4. If you removed an add-in network connector:

    1. Enter system setup, select Integrated NIC Controller, and then change the setting to On.

    1. Connect the network cable to the integrated connector on the back panel of the computer.

PCI Express Cards

Your computer supports:

  • One PCI Express x1 card

  • One PCI Express x16 card

  • One PCI Express x4 card (an x8 card electrically configured as x4)

If you are installing or replacing a PCI Express card, follow the procedures in the next section. If you are removing but not replacing a card, see Removing a PCI Express Card.

If you are replacing a card, remove the current driver for the card from the operating system.

If you are installing or replacing a PCI Express card, see Installing a PCI Express Card.

Installing a PCI Express Card

  1. Follow the procedures in Before You Begin.

1

card retention door

2

release tabs (2)

3

lever on chassis wall (may not be present on all computers)

4

filler bracket

5

alignment guide

6

alignment bar

  1. If present on your computer, rotate the lever on the chassis wall upward.

  2. Push the two release tabs on the card retention door toward each other and pivot the door open. Because the door is captive, it will remain in the open position.

  3. If your computer includes a card retention mechanism to secure the x16 card, press the release tab downward gently and then pivot the mechanism upward to access the card slots.

1

release tab

2

card retention mechanism

3

card retention door

  1. If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 7.

  2. If you are replacing a card that is already installed in the computer, remove the existing card.

If necessary, disconnect any cables connected to the card. If your card includes a retention mechanism, remove the top of the retention mechanism by pressing the tab and pulling up on the top.

  1. Pull the securing tab, grasp the card by its top corners, and then ease it out of its connector.

1

PCI Express x16 card slot

2

PCI Express x16 card

3

securing tab

4

PCI Express x1 card

5

PCI Express x1 card slot

 

 

  1. Prepare the card for installation.

See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer.

CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.
  1. If you are installing the card into the x16 card connector, position the card so that the securing slot is aligned with the securing tab.

NOTICE: Ensure that you release the securing tab to seat the card. If the card is not installed correctly, you may damage the system board.
  1. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.

1

fully seated card

2

not fully seated card

3

bracket within slot

4

bracket caught outside of slot

5

alignment bar

6

alignment guide

  1. Ensure that:

    • The tops of all cards and filler brackets are flush with the alignment bar.

    • The notch in the top of the card or filler bracket fits around the alignment guide.

  2. If you removed a card retention mechanism, snap it into place, securing the PCI Express card.

1

release tab

2

card retention mechanism

3

card retention door

NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.
NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer.
  1. Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

  2. If you installed a sound card:

    1. Enter system setup, select Integrated Audio Controller, and then change the setting to Off.

    1. Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the integrated microphone, speaker/headphone, or line-in connectors on the back panel.

  3. If you installed an add-in network adapter and want to disable the integrated network adapter:

    1. Enter system setup, select Integrated NIC Controller, and then change the setting to Off.

    1. Connect the network cable to the add-in network adapter's connectors. Do not connect the network cable to the integrated connector on the back panel.

  4. Install any drivers required for the card as described in the card documentation.

Removing a PCI Express Card

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

1

card retention door

2

release tabs (2)

3

lever on chassis wall (may not be present on all computers)

4

filler bracket

5

alignment guide

6

alignment bar

  1. If present on your computer, rotate the lever on the chassis wall upward.

  2. Push the two release tabs on the card retention door toward each other and pivot the door open. Because the door is hinged, it will remain in the open position.

1

release tab

2

card retention mechanism

3

card retention door

  1. If your computer includes a card retention mechanism to secure the x16 card, press the release tab downward gently and then pivot the mechanism upward to access the card slots.

1

PCI Express x16 card slot

2

PCI Express x16 card

3

securing tab

4

PCI Express x1 card

5

PCI Express x1 card slot

 

 

NOTICE: Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged.
  1. Release the securing tab on the card slot to unseat the card.

  2. If you are removing the card permanently, install a filler bracket in the empty card-slot opening.

If you need a filler bracket, contact Dell (see Contacting Dell).

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  1. Reseat the card retention mechanism in the tabs and pivot downward to snap it into place.

  2. Close the card retention door to snap it into place, securing the card(s).

NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer.
NOTE: For full-length PCI-E cards, if a "piano" bracket is present on your computer you need to rotate it down into place.
  1. Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

  2. Remove the card driver from the operating system.

  3. If you removed a sound card:

    1. Enter system setup, select Integrated Audio Controller, and then change the setting to On.

    1. Connect external audio devices to the integrated audio connectors on the back panel of the computer.

  4. If you removed an add-in network connector:

    1. Enter system setup, select Integrated NIC Controller, and then change the setting to On.

    1. Connect the network cable to the integrated connector on the back panel of the computer.

NOTE: Install any drivers required for the card as described in the card documentation.

Drive Panels

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.

Removing the Drive Panel

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

1

sliding plate lever

2

sliding plate

3

drive panel

  1. Grasping the lever on the sliding plate, pull the sliding plate downward and hold in place.

NOTE: The sliding plate secures and releases the drive panel and helps to secure the drives. Push from the inside and pivot the drive panel to the left to release the panel from its side hinges.
  1. The drive panel clicks open, gently ease it out and set it aside in a secure location.

Removing the Drive-Panel Insert

1

drive panel

2

drive-panel insert tab

3

drive-panel insert

  1. Remove the drive panel, see Removing the Drive Panel.

  2. Turn the drive panel around to find and hold both outer edges of the drive panel insert tab, pull inwards to ease it out of the latches that hold it in place.

  3. Set the drive-panel insert aside in a secure location.

Replacing the Drive-Panel Insert

1

drive panel

2

drive-panel insert tab

3

drive-panel insert

  1. Align the notches on the drive-panel insert to the corresponding slots on the drive panel and snap into place.

  2. Ensure that the drive-panel insert is correctly seated in the drive panel.

Replacing the Drive Panel

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

1

sliding plate

2

sliding plate lever

3

drive panel

  1. Align the drive panel tabs with the side-door hinges.

  2. Rotate the drive panel toward the computer until the sliding plate lever clicks into place and the drive panel snaps into place on the front panel.

  3. Replace the computer cover (see Replacing the Computer Cover.


Drives

Your computer supports:

  • Two hard drives (Serial ATA)

  • Two FlexBay drives (can contain an optional floppy drive, an optional Media Card Reader, or an optional hard drive).

  • Two CD or DVD drives

General Installation Guidelines

Connect the hard drives to the connectors labeled "SATA0" and "SATA1", starting with SATA0. Connect CD/DVD drives to the connectors labeled "SATA2","SATA3", or "SATA4", starting with "SATA2".

Serial ATA hard drives and CD/DVD drives are connected to the connectors labeled "SATA0" to "SATA4" on the system board.

1

interface cable

2

interface connector

When connecting and disconnecting a serial ATA cable, hold the cable by the connector at each end.

NOTE: It is recommended that you connect the hard drive to the connector labeled SATA0 on the system board. Connect additional hard drives to connectors labeled SATA1 and SATA2. Connect the CD/DVD drives to connectors adjacent to where the hard drive is connected.

Hard Drive

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
NOTICE: If you are replacing a hard drive that contains data, back up your files before you begin this procedure

Removing a Hard Drive

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Disconnect the power and hard drive cables from the drive.

1

power cable

2

hard drive cable

  1. Press in on the tabs on each side of the drive and slide the drive up and out.

1

tabs (2)

2

hard drive

  1. Replace the computer cover (see Replacing the Computer Cover).

  2. If removing this drive changes the drive configuration, then be sure to reflect these changes in the BIOS. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and set the SATA ports (SATA 0 through 4)to the correct configuration.

Installing a Hard Drive

NOTE: It is recommended that you connect the hard drive to the connector labeled SATA0 on the system board. Connect additional hard drives to connectors labeled SATA1 and SATA2.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Unpack the replacement hard drive, and prepare it for installation.

  4. Check the documentation for the drive to verify that the drive is configured for your computer.

  5. If your replacement hard drive does not have the hard-drive bracket attached, remove the bracket from the old hard drive by unsnapping it from the drive.

  6. Snap the hard-drive bracket bracket onto the replacement hard drive.

  7. Install the hard drive into the computer by sliding the drive into place until it clicks into place.

1

hard drive

2

hard-drive bracket

  1. Connect the power and hard drive cables to the hard drive.

1

power cable

2

hard drive cable

  1. Check all connectors to be certain that they are properly cabled and firmly seated.

  2. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug the cable into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

  2. If installing this drive changes the drive configuration, then be sure to reflect these changes in the BIOS. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and set the SATA ports (SATA 0 through 4)to the correct configuration.

  3. See the documentation that came with the hard drive for instructions about installing any software required for the operation of the hard drive.

Adding a Second Hard Drive

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
NOTE: It is recommended that you connect the primary hard drive on your system to the connector labeled SATA0 on the system board. Connect additional hard drives to connectors labeled SATA1 and SATA2.
  1. Check the documentation for the drive to verify that it is configured for your computer.

  2. Follow the procedures in Before You Begin.

  3. Remove the computer cover (see Removing the Computer Cover).

  4. Press in on the tabs on each side of the hard-drive bracket in the empty drive bay and slide the bracket up and out.

  5. Snap the hard-drive bracket onto the new hard drive.

NOTICE: Do not install any drive into the lower hard-drive bay until you have removed the hard-drive bracket from the inside of the hard drive bay.
  1. Slide the new hard drive into the empty bay and click it into place.

1

hard drive

2

hard-drive bracket

  1. Connect the power and hard drive cables to the drive.

  1. Check all connectors to be certain that they are properly cabled and firmly seated.

  2. Replace the computer cover (Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

  2. When you restart your computer, enter system setup (see System Setup). Then, go to the "Drives" section of the BIOS and under SATA 0 through 4, set the SATA port to "ON" for the hard drive you just installed. This enables the drive.

See the documentation that came with the drive for instructions on installing any software required for drive operation.

Installing a Hard Drive in the FlexBay

The top FlexBay drive on your system can hold an additional hard drive.

1

hard drive

2

sliding plate lever

3

flexbay knob (the default position)

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove the drive panel (see Removing the Drive Panel).

  4. Remove the shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive (see Removing the Drive-Panel Insert).

  5. Turn the FlexBay knob on the cage at 90 degrees, in the anti-clockwise direction.

NOTICE: Ensure the FlexBay knob is turned in the anticlockwise direction. Failure to heed can result in the knob being broken.
NOTE: Turning the FlexBay knob once opens up the drive space to accommodate a larger device like a hard drive. The knob at this stage is in a horizontal position.
  1. Pull the sliding plate lever down and hold in place.

  2. Slide the hard drive into the flex bay drive until the sliding plate clicks into place and the drive snaps into position.

  3. Attach the power and hard drive cables to the hard drive.

  4. Replace the computer cover (see Replacing the Computer Cover).

Removing a Hard Drive From the FlexBay

1

hard drive

2

sliding plate lever

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Disconnect the power and hard-drive cables from the back of the drive.

  4. Pull the sliding plate down and hold in place.

  5. Slide the hard drive out of the FlexBay.

NOTICE: Ensure the FlexBay knob is turned in the anticlockwise direction. Failure to heed can result in the knob being broken.
  1. Turn the FlexBay knob to its default position. Refer to the illustration on Installing a Hard Drive in the FlexBay to note the default FlexBay knob position.


Floppy Drive

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTE: If you are adding a floppy drive, see Installing a Floppy Drive.

Removing a Floppy Drive

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove the drive panel (see Removing the Drive Panel).

  4. Disconnect the power and floppy-drive cables from the back of the floppy drive.

  5. Unhook floppy-drive cable from the clips on the processor airflow shroud. Disconnect the other end of the floppy-drive cable from the system board. Remove the floppy-drive cable from the computer.

1

power cable

2

floppy-drive cable

3

floppy drive

4

sliding plate lever

5

sliding plate

6

processor airflow shroud

  1. Pull the sliding plate down and hold in place.

  2. Slide the floppy drive out of the floppy drive bay.

  1. If you are not replacing the drive, replace the drive-panel insert (see Replacing the Drive-Panel Insert).

  2. Replace the drive panel (see Replacing the Drive Panel).

  3. Replace the computer cover (see Replacing the Computer Cover.

  4. If you are not replacing the drive, then ensure that these changes are reflected in the BIOS. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and under Diskette Drive set the value to "none".

Installing a Floppy Drive

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.

  4. Remove the drive panel (see Removing the Drive Panel).

  5. If installing a new floppy drive, remove the drive panel insert (see Removing the Drive-Panel Insert).

  6. If you are installing a new floppy drive, remove the shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive. See Removing the Drive-Panel Insert.

1

floppy drive

2

shoulder screws (4)

  1. Slide the floppy drive into the floppy drive bay until the sliding plate clicks into place and the drive snaps into position.

  2. Attach the power and floppy-drive cables to the floppy drive.

  3. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

  4. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
  1. Connect your computer and devices to their electrical outlets, and then turn them on.

  2. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and under Diskette Drive set the value to "Internal only".

See the documentation that came with the floppy drive for instructions on installing any software required for the operation of the drive.

  1. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).

NOTICE: Ensure the FlexBay knob is turned in the anticlockwise direction. Failure to heed can result in the knob being broken.
NOTE: If you have already installed an additional hard drive in the FlexBay and you want to replace it with a floppy drive, ensure that the FlexBay knob is rotated, anti clockwise, back to its default vertical position, see the illustration for Installing a Hard Drive in the FlexBay.

Media Card Reader

For information on using the Media Card Reader, see Using a Media Card Reader.

Removing a Media Card Reader

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
  1. Follow the procedures in Before You Begin.

  2. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.

  3. Remove the computer cover (see Removing the Computer Cover).

  4. Remove the drive panel (see Removing the Drive Panel).

1

Media Card Reader (not present on all computers)

2

USB cable

  1. Disconnect the USB cable on the back of the Media Card Reader. Disconnect the other end of the cable from the USB connector on the system board (see System Board Components). Remove the cable from any clips and lift out of the computer.

1

sliding plate

2

sliding plate lever

3

Media Card Reader (not present on all computers)

  1. Pull the sliding plate towards the bottom of the system and hold; then, slide the drive out through the front of the computer.

  2. Replace the drive panel insert (see Replacing the Drive-Panel Insert).

  3. Replace the drive panel (see Replacing the Drive Panel).

  4. Replace the computer cover (see Replacing the Computer Cover).

  5. Turn on the system and enter system setup (see System Setup). Set the USB for FlexBay value to OFF.

Installing a Media Card Reader

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
NOTICE: Ensure the FlexBay knob is turned in the anticlockwise direction. Failure to heed can result in the knob being broken.
NOTE: If you have already installed an additional hard drive in the FlexBay and you want to replace it with a media card reader, ensure that the FlexBay knob is rotated, anti clockwise, back to its default vertical position, see the illustration for Installing a Hard Drive in the FlexBay.
  1. Follow the procedures in Before You Begin.

  2. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.

  3. Remove the computer cover (see Removing the Computer Cover).

  4. Remove the drive panel (see Removing the Drive Panel).

  5. Remove the drive panel insert (see Removing the Drive-Panel Insert).

  6. Remove the Media Card Reader from its packaging.

  7. Remove the shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive.

1

Media Card Reader

2

screws (4)

  1. Gently slide the drive into place till it clicks in securely.

NOTE: Ensure that the Media Card Reader is installed before connecting the USB cable.
  1. Connect the USB cable to the back of the Media Card Reader and to the USB connector on the system board (see System Board Components).

1

Media Card Reader (optional)

2

USB cable

  1. Route the USB cable through the cable routing clip.

  2. Replace the drive panel (see Replacing the Drive Panel).

  3. Replace the computer cover (see Replacing the Computer Cover).

  4. Turn on the system and enter system setup (see System Setup). Set the USB for FlexBay value to ON.


CD/DVD Drive

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

Removing a CD/DVD Drive

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove the drive panel (see Removing the Drive Panel).

  4. Disconnect the power cable from the back of the drive and the CD/DVD drive cable from the back of the drive and the system board.

1

CD/DVD drive cable

2

power cable

3

system board

  1. Slide the drive release mechanism to the right to release the shoulder screw and slide the drive out to remove it from the drive bay.

1

sliding plate

2

CD drive

  1. If you are not replacing the drive, replace the drive panel insert (see Replacing the Drive-Panel Insert).

  2. Replace the drive panel (see Replacing the Drive Panel).

  3. Replace the computer cover (see Replacing the Computer Cover).

  4. If you are removing and not replacing this drive, then be sure to disable the drive in the BIOS. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and under SATA 0 through 4, set the SATA ports to the correct configuration.

Installing a CD/DVD Drive

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. If you are installing a new drive, unpack the drive and prepare it for installation.

Check the documentation that accompanied the drive to verify that the drive is configured for your computer.

  1. If you are installing a new drive, remove the drive panel insert (see Removing the Drive-Panel Insert).

  2. Remove three shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive.

1

CD/DVD drive

2

shoulder screws (3)

  1. Slide the drive into the drive bay until the drive clicks into position.

  2. Connect the power cable to the drive and the CD/DVD cable to the drive and system board. To locate the systemboard connectors see System Board Components.

1

CD/DVD cable

2

power cable

3

system board

  1. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

  2. Replace the drive panel (see Replacing the Drive Panel).

  3. Replace the computer cover (See Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
  1. Connect your computer and devices to their electrical outlets, and then turn them on.

  2. When you restart your computer, enter system setup (see System Setup). On the setup screen go to the "Drives" section and under SATA 0 through 4, enable the SATA port for this drive.

See the documentation that came with the drive for instructions on installing any software required for drive operation.

  1. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).


Processor Airflow Shroud

CAUTION: Before you perform this procedure, follow the safety instructions located in the Product Information Guide.

Removing the Processor Airflow Shroud Assembly

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

CAUTION: The processor heat sink can get very hot during normal operation. Be sure that the heat sink has had sufficient time to cool before you touch it.
  1. Disconnect the fan cable from the FAN_CPU connector on the system board (see System Board Components).

1

processor airflow shroud

2

captive screws (2)

NOTICE: The processor heat sink is attached to the processor airflow shroud. When you remove the airflow shroud, lay it upside down or on its side to avoid damaging the heat sink thermal interface.
  1. Loosen the captive screws securing the processor airflow shroud to the chassis, then pivot the shroud forward and ease it out of the hinges.

  2. Lift the processor airflow shroud out of the computer, and set it aside.

Installing the Processor Airflow Shroud Assembly

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Align the hinge slots on the processor airflow shroud with the hinge guides on the system board.

  4. Align the other side of the processor airflow shroud towards the fan, and then tighten the two captive screws.

  5. Connect the fan cable to the FAN_CPU connector on the system board (see System Board Components).

  6. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and turn them on.


Fans

Removing the Processor Fan Cage

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Disconnect the fan cable from the FAN_CPU connector on the system board (see System Board Components).

  4. Remove the processor airflow shroud (see Removing the Processor Airflow Shroud Assembly).

  5. Lift and hold the release tab present on the bottom of the fan cage, press down on the top of the cage and slide it towards the back of the system to dislodge the tabs from the grooves that hold them down.

  6. Ease the cage out of the housing.

Installing the Processor Fan Cage

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove the processor airflow shroud, if you have not already removed it. (see Removing the Processor Airflow Shroud Assembly).

  4. With the fan power cable oriented downward, insert the tabs along the bottom of the fan cage into the corresponding slots on the cage housing, gently slide the fan cage towards the front of the system until it snaps into place.

  5. Connect the fan cable to the FAN_CPU connector on the system board (see System Board Components).

  6. Replace the processor airflow shroud (see Installing the Processor Airflow Shroud Assembly).

  7. Replace the computer cover (see Replacing the Computer Cover).

Removing the Processor Fan

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Disconnect the fan cable from the FAN_CPU connector on the system board (see System Board Components).

  4. Remove the processor airflow shroud (see Removing the Processor Airflow Shroud Assembly).

  5. Remove the processor fan cage from the cage housing (see Removing the Processor Fan Cage).

  6. Carefully pull on the two bottom corners of the fan to detach the four rubber grommets securing the fan to the processor airflow shroud.

1

fan cage

2

rubber grommet (4)

3

Processor fan

Installing the Processor Fan

  1. With the fan power cable oriented downward, align the rubber grommets in the fan with the holes in each corner of the processor airflow shroud, then pull the grommets through until they snap into place.

NOTE: Airflow direction and orientation are shown on the side of the fan.
  1. Replace the processor fan cage into the cage housing (see Installing the Processor Fan Cage).

  2. Replace the processor airflow shroud (see Installing the Processor Airflow Shroud Assembly).

  3. Connect the fan cable to the FAN_CPU connector on the system board (see System Board Components).

  4. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into your computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

Removing the Card Fan

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove any full-length expansion cards (see Removing a PCI Express Card and Removing a PCI Card).

  4. Disconnect the fan cable from the FAN_CARD_CAGE connector on the system board (see System Board Components).

  5. Lift and hold the tab present at the bottom of the fan cage. Pressing the top of the cage slide it towards the back of the system, then gently ease the cage out of the groove.

1

fan cage

2

tab

  1. One by one, carefully pull on each corner of the fan to detach the four rubber grommets securing the fan to the fan cage.

1

card fan

2

rubber grommet (4)

3

card fan cage

Installing the Card Fan

NOTICE: Ensure the fan cable is correctly routed through the opening in the lower-right corner of the fan cage.
  1. With the fan power cable oriented downward, align the rubber grommets in the fan with the holes in each corner of the fan cage, then pull the grommets through until they snap into place.

NOTE: Airflow direction and orientation are shown on the side of the fan. Insert the tabs along the bottom of the fan cage into the corresponding slots on the cage housing, then rotate the fan cage forward until it snaps into place.
  1. Connect the fan cable to the FAN_CARD_CAGE connector on the system board (see System Board Components).

  2. Replace any expansion cards that you removed (see Installing a PCI Card and Installing a PCI Express Card).

  3. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into your computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.


Processor

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps incorrectly could damage your system board.

Removing the Processor

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Disconnect the power cables from the POWER and 12VPOWER connectors (see System Board Components) on the system board.

  4. Remove the airflow shroud (see Removing the Processor Airflow Shroud Assembly).

  5. Push down and out on the socket release lever.

  6. Lift the socket release lever and open the processor cover.

1

processor cover

2

processor

3

socket

4

socket release lever

  1. Remove the processor from the socket.

Leave the release lever extended in the release position so that the socket is ready for the new processor.

Installing the Processor

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
  1. Unpack the new processor.

NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer.
  1. If the release lever on the socket is not fully extended, move it to that position.

  2. Align the pin-1 corner of the processor and socket.

1

processor cover

2

processor

3

socket

4

socket release lever

5

socket pin-1 indicator

 

 

NOTICE: Socket pins are delicate. To avoid damage, ensure that the processor is aligned properly with the socket, and do not use excessive force when you install the processor. Be careful not to touch or bend the pins on the system board.
  1. Set the processor lightly in the socket and ensure that the processor is level in the socket. When the processor is positioned correctly, press it with minimal pressure to seat it.

  2. When the processor is fully seated in the socket, close the processor cover.

  3. Pivot the socket release lever back toward the socket and snap it into place to secure the processor.

  4. Replace the processor airflow shroud (see Installing the Processor Airflow Shroud Assembly).

  5. Reconnect the power cables to the POWER and 12VPOWER connectors (see System Board Components) on the system board.

  6. Close the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and turn them on.


System Board

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide

Removing the System Board

NOTICE: The system board and metal tray are connected and are removed as one piece.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Remove any full-length expansion cards (see Removing a PCI Card and Removing a PCI Express Card).

  4. Remove the two screws securing the card fan assembly, then remove the processor airflow shroud (see Removing the Processor Airflow Shroud Assembly) and the Processor fan assembly (see Removing the Processor Fan Cage and Removing the Processor Fan).

  5. Remove the card fan assembly (see Removing the Card Fan).

  6. Remove any additional components that may restrict access to the system board.

  7. Disconnect all cables from the system board.

NOTICE: If you are replacing the system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
  1. Remove the eight screws securing the system board assembly to the chassis, slide the system board assembly towards the front of the computer and lift it up and out.

Installing the System Board

NOTICE: The system board and metal tray are connected and are installed as one piece.
NOTICE: If you are replacing the system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
NOTE: Some components and connectors on replacement system boards may be in different locations than corresponding connectors on the existing system board.
NOTE: Jumper settings on replacement system boards are preset at the factory.
  1. Transfer components from the existing system board to the replacement system board, if applicable.

  2. Orient the system board assembly by aligning the notches on the bottom of the assembly with the tabs on the computer.

  3. Slide the system board assembly toward the back of the computer until the assembly clicks into place.

  4. Replace the eight screws to secure the system board assembly to the chassis.

  5. Replace any expansion cards that you removed (see Installing a PCI Card and Installing a PCI Express Card).

  6. Replace the processor airflow shroud (see Installing the Processor Airflow Shroud Assembly) and the Processor Fan assembly (see Installing the Processor Fan Cage and Installing the Processor Fan).

  7. Replace the card fan assembly (see Installing the Card Fan).

  8. Replace any additional components that you removed from the system board.

  9. Reconnect all cables to the system board.

  10. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into your computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

  2. Flash the system BIOS, as needed.

NOTE: For information on flashing the system BIOS, see support.dell.com.

Power Supply

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

Power Supply (PSU) DC Connector Pin Assignments

DC Power Connector P1

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+3.3VDC

Orange

+3.3 VDC

Orange

2

+3.3 VDC

Orange

+3.3 VDC

Orange

3

COM

Black

COM

Black

4

+5 VDC

Red

+5 VDC

Red

5

COM

Black

COM

Black

6

+5 VDC

Red

+5 VDC

Red

7

COM

Black

COM

Black

8

POK

Gray

POK

Gray

9

+5 VFP

Purple

+5 VFP

Purple

10

+12 VBDC

White

+12 VB DC

White

11

+12 VB DC

White

+12 VB DC

White

12

+3.3 VDC

Orange

+3.3 VDC

Orange

13

+3.3 VDC/SE4

Orange

+3.3 VDC/SE4

Orange

14

-12 VDC

Blue

-12 VDC

Blue

15

COM

Black

COM

Black

16

PS_ON

Green

PS_ON

Green

17

COM

Black

COM

Black

18

COM

Black

COM

Black

19

COM

Black

COM

Black

20

N/C

N/C

N/C

N/C

21

+5 VDC

Red

+5 VDC

Red

22

+5 VDC

Red

+5 VDC

Red

23

+5 VDC

Red

+5 VDC

Red

24

COM

Black

COM

Black

DC Power Connector P2

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

COM

Black

COM

Black

2

COM

Black

COM

Black

3

+12 VA DC

Yellow

+12 VA DC

Yellow

4

+12 VA DC

Yellow

+12 VA DC

Yellow

DC Power Connector P3 and P5

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+3.3V DC

Orange

+3.3V DC

Orange

2

COM

Black

COM

Black

3

+5 V DC

Red

+5 V DC

Red

4

COM

Black

COM

Black

5

+12 VA DC

Yellow

+12 VA DC

Yellow

DC Power Connector P7

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+5 V DC

Red

+5 V DC

Red

2

COM

Black

COM

Black

3

COM

Black

COM

Black

4

+12 VADC

Yellow

+12 VADC

Yellow

DC Power Connectors P8, P9, P13, and P14

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+3.3 VDC

Orange

+3.3 VDC

Orange

2

COM

Black

COM

Black

3

+5 VDC

Red

+5 VDC

Red

4

COM

Black

COM

Black

5

+12 VA DC

White

+12 VB DC

White

DC Power Connectors P10

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+12 VA DC

Yellow

+12 VB DC

White

2

COM

Black

COM

Black

3

COM

Black

COM

Black

4

+5 V DC

Red

+5 V DC

Red

DC Power Connectors P12

 

375-W Power Supply

425-W Power Supply

Pin Number

Signal name

18-AWG Wire Color

Signal name

18-AWG Wire Color

1

+12 VB DC

White

+12 VC DC

Blue/White

2

+12 VB DC

White

+12 VC DC

Blue/White

3

+12 VB DC

White

+12 VC DC

Blue/White

4

COM

Black

COM

Black

5

COM

Black

COM

Black

6

COM

Black

COM

Black

DC Power Connector P15 (For 425-W PSU Only)

Pin Number

Signal Name

18-AWG Wire Color

1

+12 VC DC

Blue/White

2

+12 VC DC

Blue/White

3

+12 VC DC

Blue/White

4

COM

Black

5

COM

Black

6

COM

Black

NOTE: The P15 connector is intended for use with the PCI Express graphics cards whose power requirements exceed 75 watts.

Removing the Power Supply

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

NOTICE: Note the location and ID of each power connector before disconnecting the power supply cables.
  1. Follow the DC power cables that stem from the power supply and disconnect each connected power cable.

NOTE: Note the routing of the power cable bundles as you disconnect them. You must route these cables properly when you replace them to prevent them from being pinched or crimped.
  1. Remove the four screws that attach the power supply assembly to the back of the chassis.

  2. Press and hold the metal release tab at the bottom of the power supply unit, push the power supply towards the front of the computer to free it from the securing tabs on the computer chassis.

  3. Gather the power supply bundles that stem from the power supply, for easy removal and lift it out of the computer.

1

power supply screws (4)

Installing the Power Supply

  1. Seat the power supply unit into place, ensuring that the slot bottom of unit is aligned to tabs on the chassis, then slide it towards the back of the system till it snaps into place.

  2. Replace the four screws that secure the power supply to the back of the computer chassis.

  3. Reattach each of the DC power cables that were previously connected, carefully rerouting them as you found them.

  4. Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.


Front I/O Panel

Front I/O-Panel Components

1

add-in audio internal connector

2

1394a internal connector

3

power button connector

4

front I/O connector

5

microphone-in connector

6

headphone-out connector

7

USB external ports (2)

8

1394a external port

 

 

Removing the Front I/O Panel

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

NOTICE: Carefully note the routing of each cable before you disconnect it, so that you are sure to re-route cables correctly. An incorrectly routed or a disconnected cable could lead to computer problems.
  1. Remove the front plastic bezel. The bezel has two screws on the bottom of the chassis which need to be removed. There are also six snap features that secure the bezel to the front metal wall that must be removed.

  2. Remove the processor airflow shroud (see Removing the Processor Airflow Shroud Assembly).

  3. Remove the Processor fan assembly (seeRemoving the Processor Fan Cage and Removing the Processor Fan) and the card fan (seeRemoving the Card Fan).

  4. Disconnect the control-panel cable from the I/O panel connector by pulling the cable loop.

  5. Disconnect the power panel cable, 1394 cable, and audio cable (if it exists) so that the entire front I/O panel is free from all cables.

1

Front I/O panel

2

mounting screws (2)

  1. Remove the two screws that hold the I/O panel assembly to the front of the chassis.

  2. Gently ease out the lower end of the I/O assembly first from its groove on the chassis followed by the upper end.

Installing the Front I/O Panel

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: Ensure that you replace all cables originally attached to the I/O panel or you computer may not function properly.
  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Align the screw holes on the I/O panel with the screw holes on the chassis, and replace the two screws.

  4. Reconnect the cable that attaches the power button to the I/O panel.

  5. Reconnect the 1394 cable, and audio cable (if it exists and you had removed it).

  6. Reconnect the control-panel cable to the I/O panel connector.

  7. Replace the front bezel by aligning the six tabs on the corresponding slots on the front chassis and snapping it back into place. Replace the two screws that secure the bezel to the bottom of the chassis.

  8. Replace the processor airflow shroud (see Installing the Processor Airflow Shroud Assembly) and the Processor fan assembly (see Installing the Processor Fan Cage and Installing the Processor Fan).

  9. Connect the card fan assembly (see Installing the Card Fan)to the system board.

  10. Replace the computer cover (see Replacing the Computer Cover).


Coin-Cell Battery

Replacing the Coin-Cell Battery

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.

A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years. If you have to repeatedly reset time and date information after turning on the computer, replace the battery.

CAUTION: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.

To replace the battery:

  1. Enter the system setup program and record the values for all the screens (see Entering System Setup) so that you can restore the correct settings after installing the new battery.

  2. Follow the procedures in Before You Begin.

  3. Remove the computer cover (see Removing the Computer Cover).

  4. Locate the battery socket (see System Board Components).

NOTICE: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board.
  1. Remove the battery by carefully prying it out of its socket with your fingers or with a blunt, nonconducting object, such as a plastic screwdriver.

  2. Insert the new battery into the socket with the side labeled "+" facing up, and then snap the battery into place.

  3. Replace the computer cover. (see Replacing the Computer Cover).

1

coin-cell battery

2

tab

3

battery socket

NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.

  2. Enter system setup and restore the settings you recorded in step 1 (see Entering System Setup).

  3. Properly dispose of the old battery. See the Product Information Guide for battery disposal information.


Replacing the Computer Cover

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  1. Ensure that all cables are connected, and fold cables out of the way.

Gently pull the power cables toward you so that they do not get caught underneath the drives.

  1. Ensure that no tools or extra parts are left inside the computer.

  2. Lower the cover into place:

    1. Pivot the cover down.

    1. Press down on the right side of the cover until it closes.

    2. Press down on the left side of the cover until it closes.

  3. Ensure that both sides of the cover are locked. If not, repeat all of step 3.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and then turn them on.


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