IBM 3745 Series, Installation And Maintenance Manual

Page: 86 / 270

MAP: Service Processor Troubleshooting
Note about POST error code
The zeros before and after the error code may be not present for some PS/2
models. Messages might appears on your screen as three-, four-, or
five-characters messages. When this occurs, add two zeros after the last
characters and one, two, or three zeros before the first character, so that you
can look up the error as an eight-character message.
Example:
101 displayed means 00010100
1701 displayed means 00170100
16680 displayed means 01668000
Notes:
1. If you have both an error message and an incorrect audio response, diagnose
the error message first.
2. If you cannot run the diagnostic tests, or you get a diagnostic error code when
running a test, but did receive a POST error message, diagnose the POST
error message first.
3. If you did not receive any error message, look for a description of your error
symptoms in the first part of this index.
4. Check all power supply voltages before you replace the system board. (See
“Power-Supply” on page 3-21)
5. Check the hard disk drive jumper settings before you replace a hard disk drive.
(See “Hard Disk Drive Jumper Settings” on page 3-31).
Important
¹
Some errors are indicated with a series of beep codes. See “Beep
Symptoms” on page 3-16 for an explanation of the beep codes.
¹
The service processor based on 6563 computer is default to come up quiet
(No beep and no memory count and checkpoint code display) when no
errors are detected by POST. To enable Beep and memory count and
checkpoint code display when a successful POST occurs:
– Enable Power on Status in Setup. See “Service Processor
Configuration / Setup Utility” on page H-9.
¹
The processor is a separate FRU from the system board; the processor is
not included with the system board FRU. See “Before Replacing a System
Board” on page 3-23 before replacing the system board.
001
¹
Power-off the system.
¹
Check all cables and power cords.
¹
Make sure there are no diskettes in the drives.
¹
Set all display controls to the middle position.
(Step 001 continues)
3-2
3745-XXA 3-2 3746-9X0: 6563 SPIM