HP COMPAQ DC5750 Troubleshooting Guide download pdf (Page 61)

Control panel message Description Recommended action

change Storage > Storage Options > SATA

Emulation back to RAID and select File >

Save Changes and Exit.

1801-Microcode Patch Error Processor is not supported by ROM BIOS. 1. Upgrade BIOS to proper version.

2. Change the processor.

Invalid Electronic Serial Number Electronic serial number has become

corrupted.

1. Run Computer Setup. If Setup already

has data in the field or will not allow

the serial number to be entered,

download the executable file from

http://www.hp.com.

2. Run Computer Setup and try to enter

serial number under Security, System

ID, then save changes.

Memory Parity Error Parity RAM failure.

Third-party graphics card may be causing a

problem.

Run Computer Setup and Diagnostic utilities.

Remove third-party graphics card to see if the

problem goes away.

Network Server Mode Active and No

Keyboard Attached

Keyboard failure while Network Server Mode

enabled.

1. Reconnect keyboard with computer

turned off.

2. Check connector for bent or missing

pins.

3. Ensure that none of the keys are

depressed.

4. Replace keyboard.

Parity Check 2 Parity RAM failure.

Third-party graphics card may be causing a

problem.

Run Computer Setup and Diagnostic utilities.

Remove third-party graphics card to see if the

problem goes away.

System will not boot without fan CPU fan not installed or disconnected in

VSFF chassis.

1. Remove the computer cover, press the

power button, and see if the processor

fan spins. If the processor fan is not

spinning, make sure the fan's cable is

plugged onto the system board header.

Ensure the heatsink is properly seated

and installed.

2. If the fan is plugged in and the heatsink

is properly seated but the fan does not

spin, then replace the heatsink-fan

assembly.

Table A-1 Numeric Codes and Text Messages (continued)

ENWW POST Numeric Codes and Text Messages 55

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 71 72

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HP COMPAQ DC5750 Troubleshooting Guide Page 61

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