Lenovo NetVista Hardware Maintenance Manual for NetVista 6266, 6270, 6276, 627 - Page 54

Error Symptoms, Action/FRU, Processor, System Board, Diskette Drive, Index of Symptoms, Messages

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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 Make sure that the system is not in power saving mode. See "Power power supply fan runs. 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 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 64. System board Incorrect memory size shown or Insert the memory modules in the DIMM sockets properly, and then repeated during POST. reboot the system. Memory module. See the "Step 005" of "Memory" on page 64 to replace memory module. System board. System works but fails to enter Load default settings. power saving mode when the "Power Management" is set to In Win98, check settings in Control Panel Power utility. [Enabled], and power saving Reload software from Recovery CD. timer set in BIOS has elapsed. System hangs before system boot. "Index of Symptoms, Messages, Error Codes, or Beeps" on page 50. "Undetermined Problems" on page 69. System hangs after system boot. Execute a system test ("Diagnostics/All Tests" in PC-Doctor diagnostics program) and set it to stop at "Halt on Error" to see the potential cause of the problem. "Undetermined Problems" on page 69. Blinking cursor only; system does not work. "Start" on page 47. Diskette/IDE drive connection/cables Diskette/IDE disk drives "Undetermined Problems" on page 69. System board Diskette Drive 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. 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 54

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54
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. 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 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 64.
System board
Incorrect memory size shown or
repeated during POST.
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.
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.
Load default settings.
In Win98, check settings in Control Panel Power utility.
Reload software from Recovery CD.
System hangs before system
boot.
“Index of Symptoms, Messages, Error Codes, or Beeps” on page 50.
“Undetermined Problems” on page 69.
System hangs after system boot.
Execute a system test (“Diagnostics/All Tests” in PC-Doctor
diagnostics program) and set it to stop at “Halt on Error” to see the
potential cause of the problem.
“Undetermined Problems” on page 69.
Blinking cursor only; system
does not work.
“Start” on page 47.
Diskette/IDE drive connection/cables
Diskette/IDE disk drives
“Undetermined Problems” on page 69.
System board
Diskette Drive
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.
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