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This is the entry point for all check procedures. The check procedures use
failure symptoms, POST error codes, or beeps to help determine the failing
field replaceable unit (FRU). Follow the suggested check procedures or use
the Diagnostics and Utilities CD to determine the problem FRU.
The Diagnostics and Utilities program comes on one CD supplied with this
book. Use only this CD for all Type 2140 and Type 2142 IBM Aptiva
Personal Computers.
The Diagnostics and Utilities program is intended to test only IBM products.
Non-IBM products, prototype cards, or modified options can give false errors
and invalid system responses.
All voltages in the check procedures are positive unless otherwise shown.
And, use frame ground for all voltage checks unless otherwise specified.
Note: If the check procedures instruct you to replace a FRU and the error
message remains the same, an option adapter card might be causing
the failure. Remove all option adapter cards, one at a time, until the
error changes or the problem is no longer apparent. Replace the last
option adapter card removed.
The hard disk drive contains preloaded software. Refer to “Software
Installation Procedure” on page 4-20 to reinstall the original software. Be
sure to reload the software on the primary hard disk drive (drive C) when
replacing it.
Note: The drives in the system you are servicing might have been
re-arranged or the drive startup sequence changed. Be extremely
careful during write operations, such as copying, saving, or
formatting. Data or programs can be overwritten if you select an
incorrect drive.
Ask the customer to back up any additional software from the
hard disk drive before you take any action.
How to Diagnose Combined FRUs:
If an adapter or device consists of
more than one FRU, any of the FRUs might cause an error code. Before
replacing the device or adapter, remove the FRUs, one by one, to see if the
symptoms change.
If you have been directed here from another check procedure and were
instructed to replace the system board, and that does not correct the
problem, reinstall the original system board and go through “Start” again.
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