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HP Compaq Business PC dc7600 Series Personal Computer - page 2 / 2

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P20

Primary IDE

P23

Front audio

P24

Front panel USB

P52

Serial port header

P60

Primary Serial ATA (SATA) Port connector

P61

Secondary Serial ATA (SATA) Port connector

P62

Third Serial ATA (SATA) Port connector

P63

Fourth Serial ATA (SATA) Port connector

P70

CPU fan

P124

Hood lock

P125

Hood sensor

XBT2

Battery

XMM1

Memory socket

XMM2

Memory socket

XMM3

Memory socket

XMM4

Memory socket

XU1

Microprocessor socket

System Board Connectors and

CMOS

CMOS button

CR1

5V_AUX LED

E14

Boot block

E49

Password jumper

J20

PCI slot 1

J21

PCI slot 2

J30

PCI slot extender

J31

PCI Express slot x1

J41

PCI Express slot x16

P1

Main power (24 pin)

P3

Processor 12V header

P5

Front panel

P6

Internal chassis speaker

P8

Chassis fan

P9

Secondary chassis fan

P10

Diskette drive

P11

Aux audio in

Jumpers (position of some

untitled components may vary in location)

PCI Extender Card Connectors

J23

PCI slot 4

J24

PCI slot 5

P30

Male expansion plug

IRQ

System Function

8

Real-Time Clock

9

Unused

10

Unused, available for PCI

11

Unused, available for PCI

12

Mouse

13

Coprocessor

14

Primary ATA (IDE) Controller

System Hardware Interrupts

IRQ

System Function

0

Timer Interrupt

1

Keyboard

2

Interrupt Controller Cascade

3

Serial Port (COM B)

4

Serial Port (COM A)

5

Unused, available for PCI

6

Diskette Drive

7

Parallel Port (LPT 1)

Computer Diagnostic LEDs (on

front of computer)

LED

Color

Power

Green

Power

Green

Power

Green

Power

Clear

Power

Clear

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Power

Red*

Hard Drive

Green

*Blinking codes are repeated after a resolved.

LED/Beep Activity On 1 blink every 2 seconds 1 blink every 2 seconds Off Off 2 blinks 1 second apart 3 blinks 1 second apart 4 blinks 1 second apart 5 blinks 1 second apart 6 blinks 1 second apart 7 blinks 1 second apart 8 blinks 1 second apart 9 blinks 1 second apart 10 blinks 1 second apart Blinking 2 second pause. Beeps stop

State/Message (S0) Computer on (S1) Suspend Mode (S3) Suspend to RAM (S4) Hibernation Mode (S5) Computer off CPU thermal shutdown CPU not installed Power supply overload (crow bar) Defective or missing memory Defective or missing graphics System board failure (detected prior to video) Invalid ROM based on checksum System not fetching code System hang while loading an option ROM Hard drive activity after fifth iteration but LEDs continue until problem is

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: The power cord must be disconnected 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 Computer Setup (F10 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, in order 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.

Flash system ROM Replicated Setup Default Setup

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

DPS Self-Test Boot Order

Smart Cover Embedded Security Device Security Network Service Boot

System IDs Drivelock Security OS Security Data Execution Prevention

Hardware Power Management

Thermal

Computer Setup (F10) Utility Features (not

File

System Information About Set Time and date

Storage

Device Configuration Storage Options

Security

Smart Card Options Setup Password Power-On Password Password Options

Power

OS Power Management

all features may be available)

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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