Message/SymptomFRU/Action
Programloadsfromtheharddiskwithaknown-good
diagnosticsdisketteintherst3.5-inchdiskettedrive
1.Runsetupandcheckstartupsequence.
2.DisketteDrive
3.DisketteDriveCable
4.SystemBoard
5.AC/DCpoweradapter
PXEcomputercannotaccessprogramsfromitsownhard
disk.
Replacetheharddiskdrive
PXEcomput erdoesnotPXEfromserver1.Checkstartupsequence
2.CheckthenetworkadapterLEDstatus
Someorallkeysonthekeyboarddonotwork1.Keyboard
2.KeyboardCable
3.SystemBoard
Undeterminedproblems
Ifyouencounterundeterminedproblems,dothefollowing:
1.Turnoffthecomputerandthepower.
2.Removeordisconnectthefollowingcomponents(ifinstalled)oneatatime.
a.Externaldevices(modem,printer,ormouse)
b.Memorymodules
c.Extendedvideomemory
d.ExternalCache
e.ExternalCacheRAM
f.Harddiskdrive
3.Turnonthepowerandthecomputertore-testthesystem.
4.Repeatsteps1through3untilyoundthefailingdeviceoradaptercards.
Ifalldeviceshavebeenremoved,andtheproblemcontinues,replacethesystemboard.See“Replacing
thesystemboard”onpage82.
64HardwareMaintenanceManual