E-2 POST Error Messages
Table E-1
Continued
Message Beeps* Probable Cause Recommended Action
213-Incompatible DIMM
module
2S Replace DIMM
301-Keyboard Error None Keyboard failure. Reconnect keyboard with computer turned off.
301-Keyboard Error or
Test Fixture Installed
None Keyboard failure. Replace the keyboard.
303-Keyboard Controller
Error
None I/O board keyboard controller.
1. Reconnect keyboard with computer turned off.
2. Replace the system board.
304-Keyboard or System
Unit Error
None Keyboard failure.
1. Replace the keyboard with computer turned off.
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 No action required.
1151-System Board Comm
Port 1 Address Assignment
Conflict
2S Both external and internal serial
ports are assigned to COM1.
Run Computer Setup or Windows NT or Windows
95 utilities.
1152-System Board Comm
Port 2 Address Assignment
Conflict
2S Both external and internal serial
ports are assigned to COM2.
Run Computer Setup or Windows NT or Windows
95 utilities.
1720-SMART Hard Drive
detects imminent failure
None Hard drive is about to fail. Back up contents and replace hard drive.
* L = Long, S = Short
Continued
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