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range of diagnostic utilities to determine the operating condi-
tion of the computer’s hardware components.
The diagnostic program includes the following:
• PC-Doctor’s Diagnostic Software
This interface serves as the control program for running
both the IBM PC Enhanced Memory Diagnostics and
the suite of diagnostic tests provided by PC-Doctor.
• IBM PC Enhanced Memory Diagnostics
The memory diagnostic tests determine which memory
module (SIMM or DIMM) is defective and report the
socket where the failing module is located. The Memory
diagnostics can run a quick and full test of the system.
Diagnostics can also be run on a single SIMM or
DIMM.
Enhanced Diagnostics download or diskette
The IBM PC Enhanced Diagnostics are available on-line at
http://www.ibm.com/
• Select Support.
• Select Desktop computing from the "Search by Category"
pull down menu.
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.