Processor Board Leds; Serveraid; Undetermined Problems - IBM xSeries 200 Hardware Maintenance Manual

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Table of Contents

Processor board LEDs

Table 16.

LED

Fan

Memory

CPU

VRM

ServeRAID

For ServeRAID error codes and procedures, refer to the

Hardware Maintenance Manual for the particular RAID

adapter in the system being serviced.

Undetermined problems

You are here because the diagnostic tests did not identify

the failure, the Devices List is incorrect, or the system is

inoperative.

Note: A corrupt CMOS can cause undetermined problems.

If power problems are suspected:

1. Power-off the computer.

2. Be sure the system is cabled correctly.

3. Remove or disconnect the following (one at a time)

until you find the failure (power-on the computer and

reconfigure each time).

v Any external devices

v Surge suppressor device (on the computer)

v Modem, printer, mouse, or non-IBM devices

v Each adapter

v Drives

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Hardware Maintenance Manual: xSeries 200

Cause

1. Replace the fan assembly.

1. Replace the DIMM indicated by the lit DIMM

error.

1. If a microprocessor LED is on for a

microprocessor connector that has a terminator

card installed instead of a microprocessor, the

microprocessors are not installed in the correct

order. See "Removing and installing a

microprocessor" on page 63 for information

about the correct order for installing

microprocessors and VRMs.

2. Turn off the server, reseat the microprocessor,

and restart the server.

3. Replace the microprocessor.

1. Turn off the server, reseat the VRM indicated

by the lit VRM error LED, and restart the

server.

2. Replace the VRM

Table of Contents

Processor Board Leds; Serveraid; Undetermined Problems - IBM xSeries 200 Hardware Maintenance Manual