Reference Guide C-3
Writer: Debbie Thomson Saved by: Debbie L. Thomson Saved date: 06/04/97 10:56 PM
Pages: 5 Words: 966 Template: c:\msoffice\templates\commapp.dot
File Name Appc.doc Part Number 270844-002
POST Messages
continued
Message Beeps* Probable Cause Recommended Action
304-Keyboard or
System Unit Error
None Keyboard failure. 1. Replace the keyboard.
2. Replace the system board.
402-Monochrome
Adapter Failure
1L, 2S Monochrome display controller. Replace the monochrome display
controller.
404-Parallel Port
Address Conflict
Detected
2S Both external and internal ports
are assigned to parallel port X.
Run Computer Setup or Windows
NT or Windows 95 utilities.
501-Display Adapter
Failure
1L, 2S Video display controller. Replace the graphics board.
601-Diskette
Controller Error
None Diskette controller circuitry or
floppy drive circuitry incorrect.
1. Run Setup.
2. Check and/or replace cables.
3. Replace diskette drive.
4. Replace the system board.
602-Diskette Boot
Record Error
None Diskette in drive A not
bootable.
Replace the diskette.
605-Diskette Drive
Type Error
2S Mismatch in drive type. Run Computer Setup or Windows
NT or Windows 95 utilities.
610-External Storage
Drive Failure
None External tape drive not
connected.
Reinstall tape drive or press F1 and
allow system to reconfigure without
the drive.
611-Primary Floppy
Port Address
Assignment Conflict
2S Configuration error. Run Computer Setup or Windows
NT or Windows 95 utilities.
612-Secondary
Floppy Port Address
Assignment Conflict
2S Configuration error. Run Computer Setup or Windows
NT or Windows 95 utilities.
912-The Computer
Cover Has Been
Removed Since Last
System Start Up
None
* L = Long, S = Short
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