IBM Aptiva 2174, Hardware Maintenance Service

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Check Procedures 57
Memory
001 - START
• Power off the system unit.
•
Insert the diagnostics diskette into the diskette drive.
• Ensure that all DIMMs are installed correctly.
•
Power on the system unit.
• Take note of any messages or symptoms.
002 - DO YOU RECEIVE POST MEMORY ERROR MESSAGE? (YES,
READ AHEAD. NO, GO TO STEP003)
• Enter BIOS Setup Utility then reboot the system. Take note of any
messages, or symptoms. If the error message remains, go to step 005.
003 -
• Follow the screen instructions to run the Memory test.
004 - DOES THE MEMORY TEST COMPLETE WITHOUT AN ERROR?
(YES, READ AHEAD. NO, GO TO STEP005)
• The system memory is now functioning correctly. If you suspect an
intermittent problem, run the Memory test again.
• End.
005 -
•
Replace each DIMM, one at a time, with a known working DIMM of the
same size and type.
•
If the problem does not appear, it means that the last DIMM replaced is
defective. If all DIMMs on the system board, have been replaced and the
problem remains, replace system board.
• Go to step 001.
NOTE: If system board has no memory installed, you will hear L-L-S-S-S.
(L: long beep, S: short beep) beeps during POST.