Lenovo ThinkCentre E73z - Intermittent Problems; Keyboard, Mouse, or Pointing Device Problems

ErrorcodePOSTerrormessageDescription/Action
1820
Morethanoneexternalngerprint
readerareattached.Poweroffand
removeallbutthereaderthatyouset
upwithinyourmainoperatingsystem.
Ifmorethanoneexternalngerprint
readerareconnectedtoacomputer,
thiserrormessagewillbedisplayed
toinformyoutoremoveallofthe
ngerprintkeyboardsexceptthe
onecompatiblewiththengerprint
applicationonyourcomputer.
1962
Nooperatingsystemfound.Press
anykeytorepeatbootsequence.
ThiserroroccursonlyafterthePOST
iscompleted.
Pressanykeytorepeatboot
sequence.
Miscellaneouserrorconditions
Message/SymptomFRU/Action
ChangingdisplaycolorsDisplay/Monitor
Computerwillnotpower-off.See“Harddiskdriveboot
error”onpage59.
1.PowerSwitch
2.SystemBoard
3.Risercard,ifinstalled.
ComputerwillnotRPLfromserver
1.Ensurethatnetworkisinstartupsequenceasrst
deviceorrstdeviceafterdiskette.
2.EnsurethatnetworkadapterisenabledforRPL.
3.Networkadapter(Advisenetworkadministratorof
newMACaddress)
ComputerwillnotperformaWakeOnLAN
®
(ifapplicable)1.Checkpowersupplyandsignalcableconnections
tonetworkadapter.
2.Ensurethattheoperatingsystemsettingsaresetto
enableWakeonLAN.
3.EnsureWakeOnLANfeatureisenabledin
Setup/Conguration(see“StartingtheSetupUtility
program”onpage55
)
4.EnsurenetworkadministratorisusingcorrectMAC
address.
5.EnsurenointerruptorI/Oaddressconicts.
6.Networkadapter(advisenetworkadministratorof
newMACaddress)
Deadcomputer.See“Harddiskdrivebooterror”onpage
59
.
1.PowerSupply
2.SystemBoard
Diskettedrivein-uselightremainsonordoesnotlight
whendriveisactive.
1.DisketteDrive
2.SystemBoard
3.DisketteDriveCable
Blankscreenexceptforashingcursor.
1.SystemBoard
2.PrimaryHardDiskDrive
3.HardDiskDriveCable
Chapter7.Symptom-to-FRUIndex61