46 IBM Desktop System HMMIncorrect memory sizeshown or repeated duringPOST.1. Insert the memorymodules in the DIMMsockets properly, thenreboot the system.2. Memory module. See“005 -” on page 65 toreplace memory module.3. System board.System works but fails toenter power saving modewhen the PowerManagement Mode is set to[Enabled], and powersaving timer set in BIOS haselapsed.1. Enter Configuration/Setup Utility and loaddefault settings.2. In Windows 98, checksettings in PowerManagement Property ofControl Panel.3. Reload software fromRecovery CD.System hangs beforesystem boot.1. See “Index of Symptoms,Messages, Error Codes,or Beeps” on page 38.2. See “UndeterminedProblems” on page 74System hangs after systemboot.1. Execute a system test(“Diagnostics / All Tests”in PC-Doctor diagnosticsprogram) and set it tostop at “Halt on Error” tosee the potential cause ofthe problem.2. “UndeterminedProblems” on page 74.Blinking cursor only; systemdoes not work.1. See “Start” on page 33.2. Diskette/IDE driveconnection/cables3. Diskette/IDE disk drives4. See “UndeterminedProblems” on page 745. System boardDiskette DriveNOTE: Ensure that the diskette drive is configuredcorrectly in Configuration/Setup Utility and its read/write head is clean before diagnosing any diskettedrive problems.Error Symptoms Action/FRU