Dell OptiPlex 7020 (Mid 2014) - Manual (Page 45)

Error Message Description
Controller has
failed The hard drive or the associated controller is defective.
Data error The floppy or hard drive cannot read the data. For the Windows operating system,
run the chkdsk utility to check the file structure of the floppy or hard drive. For any
other operating system, run the appropriate corresponding utility.
Decreasing
available memory One or more memory modules may be faulty or improperly seated. Re-install the
memory modules and, if necessary, replace them.
Diskette drive 0
seek failure A cable may be loose or the computer configuration information may not match
the hardware configuration.
Diskette read
failure The floppy disk may be defective or a cable may be loose. If the drive access light
turns on, try a different disk.
Diskette subsystem
reset failed The floppy drive controller may be faulty.
Gate A20 failure One or more memory modules may be faulty or improperly seated. Reinstall the
memory modules and, if necessary, replace them.
General failure The operating system is unable to carry out the command. This message is usually
followed by specific information—for example, Printer out of paper. Take the
appropriate action to resolve the problem.
Hard-disk drive
configuration error The hard drive failed initialization.
Hard-disk drive
controller failure The hard drive failed initialization.
Hard-disk drive
failure The hard drive failed initialization.
Hard-disk drive
read failure The hard drive failed initialization.
Invalid
configuration
information-please
run SETUP
program The computer configuration information does not match the hardware
configuration.
Invalid Memory
configuration,
please populate
DIMM1 DIMM1 slot does not recognize a memory module. The module should be re-
seated or installed.
Keyboard failure A cable or connector may be loose, or the keyboard or keyboard/mouse controller
may be faulty.
Memory address
line failure at
address, read value
expecting value A memory module may be faulty or improperly seated. Reinstall the memory
modules and, if necessary, replace them.
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