Dell OptiPlex 990 (Early 2011) - Manual (Page 83)

Memory allocation error
Description The software you are attempting to run is conflicting with the operating
system, another program, or a utility.
Memory data line failure at address, read value expecting value
Description A memory module may be faulty or improperly seated. Reinstall the
memory modules and, if necessary, replace them.
Memory double word logic failure at address, read value
expecting value
Description A memory module may be faulty or improperly seated. Reinstall the
memory modules and, if necessary, replace them.
Memory odd/even logic failure at address, read value expecting
value
Description A memory module may be faulty or improperly seated. Reinstall the
memory modules and, if necessary, replace them
Memory write/read failure at address, read value expecting value
Description A memory module may be faulty or improperly seated. Reinstall the
memory modules and, if necessary, replace them.
Memory size in CMOS invalid
Description The amount of memory recorded in the computer configuration
information does not match the memory installed in the computer.
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