Table 2-3 Error Symptoms List

Error Symptoms

Action/FRU

NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause.

Processor

NOTE: Normally, the processor fan should be operative, and the processor clock setting should be exactly set to match its speed requirement before diagnosing any processor problems.

Processor fan does not run but power supply fan runs.

Make sure that the system is not in power saving mode.

With the system power on, measure the voltage of processor fan connectorr. (See “Power Supply Cable Connector Specifications” on page 129 and refer to the connectors and functions illustrated in chapter 5.) Its reading should be +12Vdc.

Processor fan.

System board.

Processor test failed.

Processor.

System board.

System Board

NOTE: Ensure that the memory modules are installed properly and the contact lead is clean before diagnosing any system problems.

Memory test failed.

“Memory” on page 95

 

System board

 

 

Incorrect memory size

Insert the memory modules in the

shown or repeated

DIMM sockets properly, and then

during POST.

reboot the system.

 

Memory module. See the “Step 005”

 

of “Memory” on page 95 to replace

 

memory module.

 

System board.

 

 

79

Page 81
Image 81
IBM 2169 manual Error Symptoms Action/FRU Processor, System Board