Dell 810 Owner's Manual page 45

Message
Keyboard fuse has
failed
Local keyboard
may not work
because all user
accessible USB
ports are
disabled. If
operating
locally, power
cycle the system
and enter system
setup program to
change settings.
DIMMs <x>
disabled - Memory
Buffer
communication
error
Causes
Overcurrent detected at the
keyboard connector.
The USB ports are disabled
in the system BIOS.
The memory module is not
properly seated.
The memory module
connector or the processor
socket may be exposed to
dust.
The processor has bent pins.
Corrective Actions
See "Getting Help" on
page 195.
Power down and restart the
system from the power
button, and then enter the
System Setup program to
enable the USB port(s). See
"Entering the System Setup
Program" on page 60.
Reseat the memory module.
See "Removing Memory
Modules" on page 107 and
"Installing Memory Modules"
on page 105.
Ensure that the memory
module connectors and
processor sockets are clean.
Verify that there are no bent
pins on the processor. If the
processor has bent pins, see
"Getting Help" on page 195.
About Your System
45