IBM 9228 Service Guide - Page 165

Problem determinations tips, Notes

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3. Remove or disconnect the following devices (one at a time) until you find the failure (turn on the computer and reconfigure each time): v Any external devices v Surge suppressor device (on the computer) v Modem, printer, mouse, or non-IBM devices v Each adapter v Hard disk drives v Memory modules. The minimum configuration requirement is 1 GB (two 512 MB DIMMs). The following minimum configuration is required for the computer to start: v Power supply v System board v Microprocessor v Memory (with a minimum of two 512 MB DIMMs) 4. Turn on the computer. If the problem remains, suspect the following components in the following order: v Power supply v System board If the problem is solved when you remove an adapter from the computer but the problem recurs when you reinstall the same adapter, that adapter might be the cause of the problem; if the problem recurs when you replace the adapter with a different one, suspect the system board. If you suspect a networking problem and the computer passes all system tests, a network cabling problem that is external to the computer might be the cause. Problem determinations tips Since you might have a variety of hardware and software configurations, have the following information available when requesting assistance from IBM Support. IBM Support will use this information to assist you in determining the problem. v Machine type and model v Microprocessor or hard disk drive upgrades v Failure symptom - Do diagnostics fails? - What, when, where, single, or multiple systems? - Is the failure repeatable? - Has this configuration ever worked? - If it has been working, what changes were made prior to it failing? - Is this the original reported failure? v Diagnostics version - Type and version level v Hardware configuration - Print (print screen) configuration currently6 in use - BIOS level v Operating system software - Type and version level Notes: 1. Comparing the configuration and software setup between working and non-working systems often leads to problem resolution. Chapter 5. Diagnostics 147

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3.
Remove or disconnect the following devices (one at a time) until you find the
failure (turn on the computer and reconfigure each time):
v
Any external devices
v
Surge suppressor device (on the computer)
v
Modem, printer, mouse, or non-IBM devices
v
Each adapter
v
Hard disk drives
v
Memory modules. The minimum configuration requirement is 1 GB (two 512
MB DIMMs).
The following minimum configuration is required for the computer to start:
v
Power supply
v
System board
v
Microprocessor
v
Memory (with a minimum of two 512 MB DIMMs)
4.
Turn on the computer. If the problem remains, suspect the following components
in the following order:
v
Power supply
v
System board
If the problem is solved when you remove an adapter from the computer but the
problem recurs when you reinstall the same adapter, that adapter might be the
cause of the problem; if the problem recurs when you replace the adapter with a
different one, suspect the system board.
If you suspect a networking problem and the computer passes all system tests, a
network cabling problem that is external to the computer might be the cause.
Problem determinations tips
Since you might have a variety of hardware and software configurations, have the
following information available when requesting assistance from IBM Support. IBM
Support will use this information to assist you in determining the problem.
v
Machine type and model
v
Microprocessor or hard disk drive upgrades
v
Failure symptom
–
Do diagnostics fails?
–
What, when, where, single, or multiple systems?
–
Is the failure repeatable?
–
Has this configuration ever worked?
–
If it has been working, what changes were made prior to it failing?
–
Is this the original reported failure?
v
Diagnostics version
–
Type and version level
v
Hardware configuration
–
Print (print screen) configuration currently6 in use
–
BIOS level
v
Operating system software
–
Type and version level
Notes:
1.
Comparing the configuration and software setup between working and
non-working systems often leads to problem resolution.
Chapter 5. Diagnostics
147