Compaq AlphaServer DS20, Руководство по обслуживанию

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Troubleshooting 2-3
If the system does not power up
•
Are the power cords plugged in?
•
Is the power supply functioning? (The power supply will shut down if it detects
any faults. See Section 1.11.)
•
Are the cover and side panels closed and the interlock engaged?
If the system comes up and approximately 30 seconds later goes down,
possible failures are:
•
CPU fan failure
•
System fan failure
•
Overtemperature condition
If you hear a series of beeps (1, followed by 2, followed by 3)
These beeps indicate that the firmware in flash ROM is corrupt. The machine hangs
and the floppy light goes on.
Action:
1. On a working machine, insert the Alpha Systems Firmware Update Version V5.4
(minimum rev.) CD in the CD-ROM drive and copy the file PC264SRM.ROM
found in the DS20 subdirectory onto a floppy renaming the file to
DP264SRM.ROM.
2. Insert the floppy you just made into the floppy drive on the broken system.
3. Using the On/Off button, turn the machine off and then back on. The SRM
console will load from the floppy.
4. Place the Alpha Systems Firmware Update CD in the CD-ROM drive.
5. Run LFU and update the firmware.
Refer to Appendix C for instructions on updating firmware.
If you hear four beeps
The header in the ROM is not valid, and the system will not boot. Replace the system
board.
If you hear six beeps
Six beeps indicate a checksum error occurred after the ROM image was copied into
memory. Either memory is misconfigured or a memory DIMM needs to be reseated.