IBM Aptiva 2124 Hardware Maintenance Service page 103

−
If the fan stops running when a drive connector is plugged back in,
go to "Start" on page 2-3.
007 - DO YOU HAVE AN OHM READING WHEN THE SWITCH IS
PRESSED AND AN OPEN READING WHEN THE SWITCH IS
RELEASED? (YES, READ AHEAD. NO, GO TO STEP 008)
−
Replace the on/off switch cable assembly.
008 -
−
Replace the system board.
−
End.
009 -
−
Replace the power supply.
−
End.
Check Procedures 2-39