IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

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Diagnostic tools
The following tools are available to help identify and
resolve hardware-related problems:
Diagnostic programs
The server 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: the system board, Ethernet
controller, video controller, RAM, keyboard, mouse
(pointing device), diskette drive, serial port, and parallel
port. You can also use them to test some external
devices.
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.
Note: 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.
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Netfinity Server HMM