vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

The server stops responding

Remove the hard disk drive that was being tested when the server stopped

during the hard disk drive

responding, and run the diagnostic test again. If the hard disk drive diagnostic test

diagnostic test.

runs successfully, replace the drive that you removed with a new one.

 

 

A hard disk drive was not

Reseat all hard disk drives and cables; then, run the hard disk drive diagnostic

detected while the operating

tests again.

system was being started.

 

 

 

A hard disk drive passes the

Run the diagnostic SCSI Fixed Disk Test (see “Running the diagnostic programs” in

diagnostic Fixed Disk Test but

the Problem Determination and Service Guide on the IBM xSeries Documentation

the problem remains.

CD).

 

Note: This test is not available on servers that have RAID arrays or servers that

 

have SATA hard disk drives. Use the Fixed Disk Test for SATA hard disk drives or

 

servers that have RAID arrays.

 

 

Intermittent problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

A problem occurs only

1. Make sure that:

occasionally and is difficult to

v All cables and cords are connected securely to the rear of the server and

diagnose.

attached devices.

 

 

v When the server is turned on, air is flowing from the fan grille. If there is no

 

airflow, the fan is not working. This can cause the server to overheat and

 

shut down.

 

2. Check the system/event error log (see “Error logs” in the Problem

 

Determination and Service Guide on the IBM xSeries Documentation CD).

 

 

66xSeries 206m Types 8485 and 8490: Installation Guide

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IBM 8485, 8490 manual Intermittent problems