HP AB300 - Server Console Solution Guide de dépannage télécharger pdf (Page 28)

4–4 335795-006 Troubleshooting Guide

Diagnostics and Troubleshooting

Power-On Diagnostic Tests

The Power-on diagnostics performs basic integrity tests of the

hardware to determine its functionality and configuration. If a

diagnostic test fails during hardware initialization the unit simply

stops. There are no messages sent to video.

✎

You may try to restart the unit and run through the diagnostic tests

a second time to confirm the first shutdown.

The following table lists the tests that are performed on the t5000

units.

Power-On Diagnostic Test

Test Description

Boot Block Checksum Tests boot block code for proper

checksum value

DRAM Simple write/read pattern test of the

first 640k of memory

Parallel port Initiates the port’s driver and

determines if the device is present

Serial port Tests the serial port using simple port

verification test to determine if ports

are present

Timer Tests timer interrupt by using polling

method

RTC CMOS battery Tests integrity of RTC CMOS battery

NAND Flash device Tests for proper NAND flash device

ID present

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HP AB300 - Server Console Solution Guide de dépannage Page 28