HP 8400 Linux PC Troubleshooting

Overview

The following information may assist in solving problems with the HP 8400 PC.

The only FRUs associated with the HP 8400 are the three hard drives, DVD-RW drive, the network card, and the actual PC.

note:

The unique address on the network card is used for the host ID. If the PC is replaced, transfer the network card to maintain the customer's options.

LED Status

LED Status	LED Color	System Status
Solid	Green	System is ON
Blinking	Green	System is in standby
Solid or blinking	Red	System has error
None	No light	System is in hibernate or is OFF

Power On Self Test (POST)

Power On Self Test (POST) is a series of diagnostic tests that runs automatically when the system is turned on. A visual message displays if the POST encounters a problem.

Activity	Beeps	Possible Cause
Red power LED blinks 2 times every second, followed by a 2 second pause	2	Processor thermal protection activated: A fan may be blocked or not turning. Heatsink assembly may not be properly attached to the processor.
Red power LED blinks 3 times every second, followed by a 2 second pause	3	Bad processor
Red power LED blinks 4 times every second, followed by a 2 second pause	4	Power failure, power supply is overloaded
Red power LED blinks 5 times every second, followed by a 2 second pause	5	Pre-video memory error
Red power LED blinks 6 times every second, followed by a 2 second pause	6	Pre-video graphics error
Red power LED blinks 7 times every second, followed by a 2 second pause	7	System board failure (ROM detected failure prior to video)
Red power LED blinks 8 times every second, followed by a 2 second pause	8	Invalid ROM based on bad checksum
Red power LED blinks 9 times every second, followed by a 2 second pause	9	System powers on, but does not boot

Disk Drive Configuration

There are no jumpers required for configuring the disk drives on the HP 8400. Ensure that the drives are plugged into the correct ports on the motherboard.

SAS Devices

The SAS 0 output must connect to HDD O (lower) hard drive. This drive contains the application software.

The SAS 1 output must connect to HDD 1 (middle) hard drive. This drive contains image data.

The SAS 2 output must connect to HDD 2 (upper) hard drive. This drive contains image data.