3-6
Diagnostic Tools
Maintenance and Service Guide
POST Error Messages
Continued
Error Code
Beeps
Probable Source of
Problem
Action
303-Keyboard
Controller Error
None
System board, keyboard,
or mouse controller
failure.
Check with your
Authorized Compaq
Reseller.
304-Keyboard or
System Unit Error
None
Keyboard, keyboard
cable, or system board
failure.
1.
Make sure the
keyboard is
attached.
2.
Run Diagnostics to
determine which is in
error.
3.
Replace the part
indicated.
40X-Parallel Port X
Address Assignment
Conflict
2S
Both external and
internal ports are
assigned to parallel port
X.
Run the System
Configuration Utility.
402-Monochrome
Adapter Failure
1L,2S
Monochrome display
controller.
Replace the
monochrome display
controller.
501-Display Adapter
Failure
1L,2S
Video display controller.
Replace the video board.
601-Diskette
Controller Error
None
Diskette controller
circuitry failure.
1.
Make sure the
diskette drive cables
are attached.
2.
Replace the diskette
drive and/or cable.
3.
Replace the system
board.
605-Diskette Drive
Type Error
2S
Mismatch in drive type.
Run the System
Configuration Utility to
set diskette type
correctly.
702-A coprocessor
has been detected
that was not
reported by CMOS.
None
Installed coprocessor not
configured.
Run the System
Configuration Utility and
correct.
703-CMOS reports a
coprocessor that has
not been detected
2S
Coprocessor or
configuration error.
1.
Run the System
Configuration Utility
and correct.
2.
Replace the
coprocessor.
Continued
Summary of Contents for ProLiant 4500 Servers
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