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Technical Overview

  Inside View of Your Computer

  System Board Components

  Power Supply DC Connector Pin Assignments

Inside View of Your Computer

1	drives bay (CD/DVD, floppy, and hard drive)	2	power supply	3	system board
4	card slots	5	heat sink assembly	6	front I/O panel

System Board Components

1	fan connector (FAN)	2	processor connector (CPU)	3	power connector (12VPOWER)
4	memory module connectors (DIMM_1, DIMM_2)	5	serial ATA drive connector (SATA0)	6	front-panel connector (FNT_PANEL)
7	power connector (POWER)	8	CD/DVD drive connector (IDE)	9	PCI Express x1 card connector
10	PCI card connector (2)	11	FlexBay USB connector	12	piezo buzzer
13	password jumper (PSWD)	14	floppy drive connector (DSKT)	15	battery socket (BATT)
16	RTC reset jumper (RTCRST)

Jumper Settings

The jumper locations are shown below.

Jumper	Setting	Description
PSWD		Password features are enabled (default).
		Password features are disabled.
RTCRST		The real-time clock is in normal operating mode.
		The real-time clock is being reset (jumpered temporarily).
jumpered   unjumpered

Power Supply DC Connector Pin Assignments

1. Follow the procedures in "Before You Begin."
   
   
2. Disconnect the DC power cables from the system board and the drives.
   
   

Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent their being pinched or crimped.

3. Remove the two screws that attach the power supply to the back of the computer chassis.
   
   
4. Remove the CD/DVD drive and carefully set it aside.
   
   
5. Press the release button located on the floor of the computer chassis.
   
   

1	release button
2	power supply
3	screws (2)
4	AC power connector

6. Slide the power supply toward the front of the computer by approximately 1 inch.
   
   
7. Lift the power supply up and out of the computer.
   
   
8. Slide the replacement power supply into place.
   
   
9. Replace the screws that secure the power supply to the back of the computer chassis.
   
   
10. Reconnect the DC power cables.
    
    
11. Replace the CD/DVD drive.
    
    
12. Connect the AC power cable to the connector.
    
    
13. Replace the computer cover.
    
    

DC Power Connectors

DC Power Connector P1

Pin Number	Signal name	18-AWG Wire
1	+3.3 VDC	Orange
2	+3.3 VDC	Orange
3	GND	Black
4	+5 VDC	Red
5	GND	Black
6	+5 VDC	Red
7	GND	Black
8	PS_PWROK*	Gray
9	P5AUX	Purple
10	+12 VDC	White
11	+12 VDC	White
12	+3.3 VDC	Orange
13	+3.3 VDC	Orange
14	-12 VDC*	Blue
15	GND	Black
16	PWR_PS_ON*	Green
17	GND	Black
18	GND	Black
19	GND	Black
20	NC	N/C
21	+5 VDC	Red
22	+5 VDC	Red
23	+5 VDC	Red
24	GND	Black
*Uses 22-AWG wire instead of 18-AWG wire.

DC Power Connector P2

Pin Number	Signal Name	18-AWG Wire
1	GND	Black
2	GND	Black
3	+12 VDC	Yellow
4	+12 VDC	Yellow

DC Power Connector P3

Pin Number	Signal name	18-AWG Wire
1	+12 VDC	Yellow
2	GND	Black
3	GND	Black
4	+5 VDC	Red

DC Power Connector P4

Pin Number	Signal Name	22-AWG Wire
1	+5 VCD	Red
2	GND	Black
3	GND	Black
4	+12 VDC	Yellow

DC Power Connector P5

Pin Number	Signal name	18-AWG Wire
1	+3.3 VDC	Orange
2	COM	Black
3	+5 VDC	Red
4	GND	Black
5	+12 VDC	Yellow

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