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System Board Connectors and Jumpers (position of some untitled components may vary in location)

CR1

5V Aux power LED

P23

Front audio

E49

Password jumper

P24

USB connector, front panel

J20

PCI slot 1

P52

Second Serial port

J21

PCI slot 2

P54

Primary Serial port 

J31

PCI Express x1

P60

Primary Serial ATA (SATA) connector

J41

PCI Express x16

P61

Secondary Serial ATA (SATA) connector

P1

Main power (24 pin)

P124

Hood lock

P3

Processor 12V header

P125

Hood sensor

P5

Main power switch/LED 

SW50

CMOS button

P6

Internal chassis speaker

XBT1

Battery

P8

Primary chassis fan

XMM1

Memory socket

P9

Secondary chassis fan

XMM2

Memory socket

P10

Diskette drive

XMM3

Memory socket

P11

Aux audio in

XMM4

Memory socket

P14

Boot block

XU1

Microprocessor socket

P20

IDE

System Hardware Interrupts 

IRQ

System Function

IRQ

System Function

0

Timer Interrupt 

8

Real-Time Clock 

1

Keyboard

9

Unused

2

Interrupt Controller Cascade

10

Unused, available for PCI

3

Serial Port (COM B)

11

Unused, available for PCI

4

Serial Port (COM A)

12

Mouse

5

Unused, available for PCI

13

Coprocessor 

6

Diskette Drive

14

Primary ATA (IDE) Controller

7

Parallel Port (LPT 1)

Computer Diagnostic LEDs (on front of computer)

LED

Color

LED/Beep Activity

State/Message

Power

Green

On

(S0) Computer on

Power

Green

1 blink every 2 seconds

(S1) Suspend Mode

Power

Green

1 blink every 2 seconds

(S3) Suspend to RAM

Power

Clear

Off

(S4) Hibernation

Power

Clear

Off

(S5) Computer off

Power

Red*

2 blinks 1 second apart

CPU thermal shutdown

Power

Red*

3 blinks 1 second apart

CPU not installed

Power

Red*

4 blinks 1 second apart

Power supply overload (crow bar)

Power

Red*

5 blinks 1 second apart

Defective or missing memory

Power

Red*

6 blinks 1 second apart

Defective or missing graphics

Power

Red*

7 blinks 1 second apart

System board failure (detected prior to video)

Power

Red*

8 blinks 1 second apart

Invalid ROM based on checksum

Power

Red*

9 blinks 1 second apart

System not fetching code

Power

Red*

10 blinks 1 second apart

System hang while loading an option ROM

Hard Drive

Green

Blinking

Hard drive activity

*

Blinking codes are repeated after a 2 second pause. Beeps stop after fifth iteration but LEDs continue until problem is 

resolved.

Clearing CMOS

The computer's configuration (CMOS) may occasionally be corrupted. If it is, it is necessary to clear the CMOS 
memory using switch SW50.
To clear and reset the configuration, perform the following procedure:
1.

Turn off the computer and any external devices, and disconnect the power cord from the power outlet.

Ä

CAUTION:

You must disconnect the power cord from the power source before pushing the Clear CMOS 

Button (NOTE: All LEDs on the board should be OFF). Failure to do so may damage the system board.

2.

Remove the access panel.

3.

Press the CMOS button located on the system board.

4.

Replace the access panel.

5.

Turn the computer on and run F10 Computer Setup (Setup utility) to reconfigure the system.

Disabling or Clearing the Power-On and Setup Passwords

1.

Turn off the computer and any external devices, and disconnect the power cord from the power outlet.

2.

Remove the access panel.

3.

Locate the header and jumper labeled E49.

4.

Remove the jumper from pins 1 and 2. Place the jumper over pin 2 only to avoid losing it.

5.

Replace the access panel.

6.

Plug in the computer and turn on power. Allow the operating system to start. 
NOTE: Placing the jumper on pin 2 clears the current passwords and disables the password features.

7.

To re-enable the password features, repeat steps 1-3, then replace the jumper on pins 1 and 2.

8.

Repeat steps 5-6, then establish new passwords. 
Refer to the 

Desktop Management Guide

 and the 

Computer Setup (F10) Utility Guide

 for instructions on 

establishing new passwords

Computer Setup (F10) Utility Features (not all features may be available)

File

System Information
About
Set Time and date

Flash system ROM
Replicated Setup
Default Setup

Apply Defaults and Exit
Ignore Changes and Exit
Save Changes and Exit

Storage

Device Configuration
Storage Options

DPS Self-Test
Boot Order

Security

Smart Card Options
Setup Password
Power-On Password
Password Options

Smart Cover
Embedded Security
Device Security
Network Service Boot

System IDs
Drivelock Security
OS Security
Data Execution Prevention

Power

OS Power Management

Hardware Power Management

Thermal

Advanced

Power-On Options
Execute Memory Test
BIOS Power On

Onboard Devices
PCI Devices
PCI VGA Configuration

Bus Options
Device Options

Note: See the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics CD.

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