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4. Examine the POST output.
Each POST error message includes a “best guess” as to which field-replaceable unit
(FRU) was the source of failure. In some cases, there may be more than one possible
source, and these are listed in order of decreasing likelihood.
Note –
Should the POST output contain code names and acronyms with which you
are unfamiliar, see
TABLE 6-13
in “Reference for Terms in Diagnostic Output” on
page 121.
What Next
Try replacing the FRU or FRUs indicated by POST error messages, if any. For
replacement instructions, see:
■
Sun Fire V480 Server Parts Installation and Removal Guide
If the POST diagnostics did not turn up any problems, but your system does not
start up, try running the interactive OpenBoot Diagnostics tests.
How to Isolate Faults Using Interactive
OpenBoot Diagnostics Tests
Before You Begin
Because OpenBoot Diagnostics tests require access to some of the same hardware
resources used by the operating system, they cannot be operated reliably after an
operating system halt or Stop-A key sequence. You need to reset the system before
running OpenBoot Diagnostics tests, and then reset the system again after testing.
Instructions for doing this follow.
This procedure assumes you have established a system console. See:
■
“About Communicating With the System” on page 75
Summary of Contents for Sun Fire V480
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