User Guide

User Guide
Microprocessor: Dell Precision WorkStation 340 Service Manual

Back to Contents Page

Microprocessor

Dell Precision™ WorkStation 340 Service Manual


Removing the Microprocessor

NOTE: Dell recommends that only a technically knowledgeable person perform this procedure.
CAUTION: The processor can get very hot during normal operation. Be sure that the processor has had sufficient time to cool before you touch it.
CAUTION: Before you perform this procedure, see "Safety First—For You and Your Computer."
NOTICE: Before disconnecting a device from the computer, wait 10 to 20 seconds after disconnecting the computer from its electrical outlet. Before removing a component from the system board, verify that the standby power light on the system board has turned off. To locate this light, see your computer's illustration in "System Board Components."
  1. Disconnect the fan power cable from the system board (see "System Board Components" for the location of the connector).

  2. Disconnect the 12-volt power cable from the system board (see "System Board Components" for the location of the connector).

  3. On the mini-tower computer, rotate the airflow shroud.

Airflow Shroud Rotation—Mini-Tower Computer

  1. Remove the securing clips to remove the heat sink/blower assembly.

On the small desktop computer, the heat sink is attached to the blower.

On the mini-tower computer, press down on the metal securing latches to release the securing clips from the retention base. Then lift the clips out of the tabs on the retention base and away from the heat sink.

Heat Sink/Blower Assembly Removal—Small Desktop Computer

1

securing clips (2)

4

heat sink

2

latches (2)

5

screws (2)

3

retention base

6

blower

Heat Sink Removal—Mini-Tower Computer

1

securing clips (2)

4

ZIF socket

2

latches (2)

5

retention base

3

tabs (3)

6

heat sink

NOTICE: Gently rock the heat sink and then lift it to remove.
  1. Lift the heat sink or heat sink/blower assembly away from the microprocessor.

  2. On the small desktop computer, remove the two screws on the blower to remove it from the heat sink.

NOTICE: Do not discard the original heat sink and securing clips unless you are installing a microprocessor upgrade kit from Dell. If you are not installing a microprocessor upgrade kit from Dell, reuse the original heat sink, blower, and securing clips when installing your new microprocessor.

The ZIF socket has a lever-type handle that secures and releases the microprocessor from the ZIF socket

  1. Pull the socket lever up straight up until the microprocessor is released.

NOTICE: Be careful not to bend any of the pins when you remove the microprocessor package from the ZIF socket. Bending the package pins can permanently damage the microprocessor.

Microprocessor Removal

1

ZIF socket lever

3

microprocessor

2

ZIF socket

 

  1. Remove the microprocessor from the socket.

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

Installing the Microprocessor

NOTICE: You must position the microprocessor package correctly in the socket to avoid permanent damage to the microprocessor and the computer.
  1. If the release lever on the ZIF socket is not extended to the release position, move it to that position.

  2. Align pin-1 (the beveled corner) of the microprocessor package and pin-1 of the socket.

NOTE: Pin 1 of the microprocessor is indicated by a small triangle in one corner of the microprocessor. Pin 1 of the socket is indicated by a small triangle in one corner of the socket.

Microprocessor Installation

1

pin-1 corners of microprocessor and the socket

NOTICE: The microprocessor pins are delicate. To avoid damage, ensure that the microprocessor aligns properly with the socket, and do not use excessive force when installing the processor.
  1. Carefully set the microprocessor in the socket and press it down lightly to seat it.

  2. Rotate the lever toward the socket until it snaps into place, securing the microprocessor package.

NOTICE: If you are not installing a microprocessor kit from Dell, reuse the original heat sink and securing clips when replacing the microprocessor.
  1. If you are installing a new heat sink, remove the film covering the bottom of the heat sink.

  2. On the small desktop computer, reinstall the two screws that attach the blower to the heat sink.

  3. Lower the heat sink or blower/heat sink assembly to the microprocessor so that the heat sink fits in the retention base.

  4. Fit the end of each securing clip that does not have the latch over its tab on the retention base. Then, fit the middle of the clip over the middle tab on the retention base, and press down on the clip's latch to secure the clip to the retention base.

  5. On the mini-tower computer, lower the airflow shroud over the heat sink.

  6. Plug the cooling fan power cable into its connector on the system board.

  7. Plug the 12-volt power cable into its connector on the system board.

  8. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

Checking Computer Functions

As the computer boots, it detects the presence of the new microprocessor and automatically changes the computer configuration information in system setup.

NOTE: After you open and close the cover, the chassis intrusion detector causes the following message to be displayed at the next computer start-up: ALERT! Cover was previously removed.Reset the chassis intrusion detector.
  1. Enter system setup and confirm that the system data area correctly identifies the type of installed microprocessor.

For instructions on using system setup, see your User's Guide.

  1. While in system setup, reset the Chassis Intrusion option by pressing the left- or right-arrow key to select Reset and then choosing Enabled, Enabled-Silent, or Disabled.

NOTE: If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intrusion detector.
  1. Run the Dell Diagnostics to verify that the new processor is operating correctly.


Back to Contents Page

 

All rights reserved : About Dell | Site Terms | Terms and Conditions | Unresolved Issues | Privacy | Site Map | Feedback

* IMPORTANT DELL DETAILS:

DELL'S NORMAL TERMS AND CONDITIONS APPLY AND ARE AVAILABLE ONLINE OR UPON REQUEST. While all efforts are made to check pricing and other errors, inadvertent errors do occur from time to time and Dell reserves the right to decline orders arising from such errors.

Product image on the page is for your reference only.

snWEB3