Troubleshooting; Diagnostics Overview; The Bios Post Test - HP D7171A - NetServer - LPr Installation Manual

3 Troubleshooting

Diagnostics Overview

A set of diagnostics procedures and reporting facilities points you towards a
troubleshooting solution if problems occur. The memory controller corrects
minor (single-bit) errors in DIMM functioning. Errors are detected and reported
both during boot-up testing and during run time. More serious, multiple-bit
errors may require the user to replace a defective DIMM.

The BIOS POST Test

During the POST (Power-On Self-Test), the BIOS checks memory to ensure that
all DIMMs are functioning correctly. The POST test checks physical locations
(addresses) on individual DIMMs in a rotating manner. This revolving sequence
of checks is called the Memory Count Display.
If a bad memory location is detected, the BIOS will resize memory to eliminate
the location. Refer to the following section for a description of the different types
of memory errors that may occur.
During the POST test, error message codes are reported on the screen for
specified error conditions. The errors are logged in the Error Message Utility
(EMU) and/or the Error Log Report Utility (ELRU)
Utilities package on the HP NetServer Navigator CD-ROM.
If you have booted from the HP Navigator CD-ROM, the EMU is launched
automatically should errors be logged. Information is displayed for all POST
errors. If you do not boot from the CD-ROM, you must run the HP Navigator
CD-ROM or run the EMU from a pre-configured Utility Partition.
NOTE
All errors that occur during run time will be logged in the
Error Log Report Utility (ELRU). Run the HP NetServer
Navigator CD-ROM. From the main menu, choose the
NetServer Utilities menu, then choose the Error Log Report
Utility.
part of the NetServer
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