IBM NetVista Hardware Manual page 54

Table 2-3 Error Symptoms List
Error Symptoms
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.
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.
Processor test failed.
NOTE: Ensure that the memory modules are installed properly and the contact lead is clean before
diagnosing any system problems.
Memory test failed.
Incorrect memory size shown or
repeated during POST.
System works but fails to enter
power saving mode when the
"Power Management" is set to
[Enabled], and power saving
timer set in BIOS has elapsed.
System hangs before system
boot.
System hangs after system boot. Execute a system test ("Diagnostics/All Tests" in PC-Doctor
Blinking cursor only; system
does not work.
NOTE: Ensure that the diskette drive is configured correctly in BIOS Setup and its read/write head is
clean before diagnosing any diskette drive problems.
Media and drive are
mismatched.
54
Action/FRU
Processor
Make sure that the system is not in power saving mode. See "Power
Management Setup" on page 39.
With the system power on, measure the voltage of processor fan
connector FN. (See "Power Supply Cable Connector Specifications on
page103 and refer to the connectors and Connectors and Functions of
System Board of Machine Types 6266, 6270, 6276, 6279, 6280 and
6286 on page 102). Its readingshould be +12Vdc.
Processor fan.
System board.
Processor.
System board.
System Board
"Memory" on page 64.
System board
Insert the memory modules in the DIMM sockets properly, and then
reboot the system.
Memory module. See the "Step 005" of "Memory" on page 64 to
replace memory module.
System board.
Load default settings.
In Win98, check settings in Control Panel Power utility.
Reload software from Recovery CD.
"Index of Symptoms, Messages, Error Codes, or Beeps" on page 50.
"Undetermined Problems" on page 69.
diagnostics program) and set it to stop at "Halt on Error" to see the
potential cause of the problem.
"Undetermined Problems" on page 69.
"Start" on page 47.
Diskette/IDE drive connection/cables
Diskette/IDE disk drives
"Undetermined Problems" on page 69.
System board
Diskette Drive
Make sure that the diskette drive is configured correctly in the Disk
Drives of BIOS Setup.
Make sure that the diskette drive is correctly formatted.
Diskette drive connection/cable
Diskette drive
System board