4.Turnonthecomputertoretestthesystem.
5.Repeatsteps1through3untilyoundthefailingdeviceoradapter.
Ifalldevicesandadaptershavebeenremoved,andtheproblemcontinues,replacethesystemboard.
Iftheproblemissolvedwhenyouremoveanadapterfromthecomputerbuttheproblemrecurswhenyou
reinstallthesameadapter,suspecttheadapter.
Ifthecomputerpassesallthesystemtests,suspectanetworkcablingproblemthatisexternaltothe
computer.
64ThinkCentreHardwareMaintenanceManual