General Checkout - IBM 867413x - Eserver xSeries 330 8674 Hardware Maintenance Manual

General checkout

The server/workstation diagnostic programs are stored in upgradable read-only
memory (ROM) on the system board. These programs are the primary method of
testing the major components of the server/workstation: the system board,
Ethernet controller, video controller, RAM, keyboard, mouse (pointing device),
diskette drive, serial ports, and hard drives. You can also use them to test some
external devices. See "Diagnostic programs and error messages" on page 15.
Also, if you cannot determine whether a problem is caused by the hardware or by
the software, you can run the diagnostic programs to confirm that the hardware is
working properly.
When you run the diagnostic programs, a single problem might cause several error
messages. When this occurs, work to correct the cause of the first error message.
After the cause of the first error message is corrected, the other error messages
might not occur the next time you run the test.
A failed system might be part of a shared DASD cluster (two or more systems
sharing the same external storage device(s)). Prior to running diagnostics, verify
that the failing system is not part of a shared DASD cluster.
A system might be part of a cluster if:
v The customer identifies the system as part of a cluster.
v One or more external storage units are attached to the system and at least one of
v One or more systems are located near the failing system.
If the failing system is suspected to be part of a shared DASD cluster, all
diagnostic tests can be run except diagnostic tests which test the storage unit
(DASD residing in the storage unit) or the storage adapter attached to the storage
unit.
Notes:
1. Safety information, see "Safety information" on page 147.
2. For systems that are part of a shared DASD cluster, run one test at a time in
3. If multiple error codes are displayed, diagnose the first error code displayed.
4. If the computer hangs with a POST error, go to "POST error codes" on
5. For intermittent problems, check the error log; see "Event/error logs" on
© Copyright IBM Corp. 2001
the attached storage units is additionally attached to another system or
unidentifiable source.
looped mode. Do not run all tests in looped mode, as this could enable the
DASD diagnostic tests.
page 127.
page 12.
1