Compaq 1600R - ProLiant - 128 MB RAM Maintenance And Service Manual page 64

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3-10 Diagnostic Tools
POST Error Messages
ZZ-301-
Keyboard Error
303-Keyboard
Controller Error
304-Keyboard
or System Unit
Error
40X-Parallel
Port X Address
Assignment
Conflict
402-
Monochrome
Adapter
Failure
501-Display
Adapter
Failure
601-Diskette
Controller Error
605-Diskette
Drive
Type Error
Continued
Audible
Beeps
Error Code L=Long
S=Short
None
None
None
2S
1L, 2S
1L, 2S
None
2S
Probable Source of
Problem
Keyboard failure. (ZZ
represents the
Keyboard Scan
Code.)
System board,
keyboard, or mouse
controller failure.
Keyboard, keyboard
cable, or system
board failure.
Both external and
internal ports are
assigned to parallel
port X.
Monochrome display
controller.
Video display
controller.
Diskette controller
circuitry failure.
Mismatch in drive
type.
Action
1. A key is stuck. Try to
free it.
2. Replace the
keyboard.
1. Run Diagnostics.
2. Replace failed
assembly as
indicated.
1. Make sure the
keyboard is
attached.
2. Run Diagnostics to
determine which is in
error.
3. Replace the part
indicated.
Run the System
Configuration Utility and
correct.
Replace the
monochrome display
controller.
Replace the video
board.
1. Make sure the
diskette drive cables
are attached.
2. Replace the diskette
drive and/or cable.
3. Replace the system
board.
Run the System
Configuration Utility to
set diskette type
correctly.