HP dc5000 series User Manual
Page 2
Heat Sink Removal
System Board Connectors and Jumpers (position of some untitled components may vary in location)
CR1
5V_Aux LED
P16
Power supply fan control
E49
Password jumper
P20
Primary IDE
J20
PCI slot 1
P21
Secondary IDE
J21
PCI slot 2
P23
Front panel audio connector
J22
PCI slot 3
P24
Front panel USB connector
P1
Main power (20 pin)
P54
Serial Port “B”
P3
CPU regulator power (4 pin)
P70
CPU fan
P5
Front panel
SW50
CMOS button
P6
Internal chassis speaker
XBT1
Battery
P7
CD audio in
XMM1
Memory socket
P8
Chassis fan
XMM2
Memory socket
P10
Diskette drive
XMM3
Memory socket
P11
Aux audio in
XMM4
Memory socket
P14
Boot block
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)
15
Secondary ATA (IDE) Controller
Computer Diagnostic LEDs (on front of computer)
LED
Color
LED 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
Green
Off
(S4) Suspend to Disk (if applicable)
Power
Clear
Off
(S5) Computer off
Power
Red
1 blink followed by 2-second
pause - Repeat
Power Supply failure
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
No memory
Power
Red*
6 blinks 1 second apart
No graphics
Power
Red*
7 blinks 1 second apart
System board failure (detected prior to video)
Power
Red*
8 blinks 1 second apart
Invalid ROM
Hard Drive
Green
Blinking
Hard drive activity
*Blinking codes are repeated after a 2 second pause.
Keyboard Diagnostic LEDs, PS/2 Keyboards Only
LED
Color
LED Activity
State/Message
Num, Caps,
Scroll Lock
Green
On (Rising Tone)
ROM reflashed successfully
Num Lock
Green
On
ROMPaq diskette not present, is bad, or drive
not ready.*
Caps Lock
Green
On
Enter password.
Num, Caps,
Scroll Lock
Green
Blink On in sequence, one at a
time - N, C, SL
Keyboard locked in network mode
* Insert valid ROMPaq diskette in drive A. Turn power switch off, then on to reflash ROM. If ROM flash is successful, all
three keyboard LEDs will light up, and you will hear a rising tone series of beeps. Remove diskette and turn power off,
then on to restart the computer. For more information about flashing the ROM, refer to the Troubleshooting guide.
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.
Prepare the computer for disassembly.
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 and keep it depressed for 5 seconds.
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, 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 Computer Setup (F10 Setup) instructions to establish new passwords.
Computer Setup (F10) Utility Features (not all features may be available)
File
System Information
About
Set Time and date
Save to Diskette
Restore From Diskette
Set defaults and Exit
Ignore Changes and Exit
Save Changes and Exit
Storage
Device Configuration
Options
IDE DPS Self-Test
Controller Order
Boot Order
Security
Setup Password
Power-On Password
Password Options
DriveLock
Master Boot Record Security
Save Master Boot Record
Restore Master Boot Record
Device Security
Network Service Boot
System IDs
Advanced
Power-On Options
Onboard devices
PCI Devices
Bus Options
Device Options
PCI VGA Configuration
Note: For more information see Computer Setup (F10) Utility Guide on the Documentation Library CD.