Dell OptiPlex GX1 Service Manual page 69

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System Setup program
contains incorrect
system configuration
settings.
System cannot commu-
nicate with keyboard.
Keyboard/mouse con-
troller failed.
During memory test,
value read at address
was incorrect.
Beep Codes and Error Messages
Incorrect configuration
settings in System Setup
program or faulty battery.
Keyboard cable connec-
tor loose or improperly
connected, defective
keyboard, or defective
keyboard/mouse control-
ler (defective system
board).
Defective keyboard/
mouse controller (defec-
tive system board).
Faulty or improperly
seated DIMMs or defec-
tive system board.
3-5