2-2
AlphaServer DS20 Service Manual
2.1
Troubleshooting During Power-Up
Power or other problems can occur before the system is up and running.
Power Problem List
The system will halt/power off for the following reasons:
1.
A CPU fan failure
2.
A system fan failure
3.
An overtemperature condition
4.
Power supply failure if the redundant power option is not present
5.
Circuit beaker(s) tripped
6.
AC problem
7.
Interlock switch activation or failure
8.
Environmental electrical failure or unrecoverable system fault with auto_action ev
= halt or boot
9.
Cable failure
Indication of failure
•
LEDs on the server feature module indicate fan, overtemperature, and power
problem conditions.
•
Circuit breaker(s) tripped at the AC service panel.
•
There is no obvious indication for failures 7 – 9 from the power system.
Beep Codes
Number
Definition
1, 2, 3 beeps
The firmware in flash ROM is corrupt.
4 beeps
The header in the ROM is not valid.
6 beeps
A checksum error occurred after the ROM image was copied into
memory.