Technical Reference Guide
Compaq Personal Computers
Changed – January 2000
A-1
Appendix AERROR MESSAGES AND CODES

A. Appendix A ERROR MESSAGES AND CODES

A.1 INTRODUCTION

This appendix lists the error codes and a brief description of the probable cause of the error. Note
that not all errors listed in this appendix may be applicable to a particular system
depending on the model and/or configuration.

A.2 POWER-ON MESSAGES

Table A–1. Power-On Messages
Table A-1.
Power-On Messages
Message Beeps Probable C ause
CMOS Time and Date Not Set (None) Invalid time or date
(none) 2 short Power-On successful
Run Setup (None) Any failure

A.3 BEEP/KEYBOARD LED CODES

Table A–2. Beep/Keyboard LED Codes
Table A-2.
Beep/Keyboard LED Codes
Beeps LED [1] Probable Cause
1 short, 2 long NUM loc k blinking Base memory failure.
1 long, 2 short CAP loc k blinking Video/graphics controller failure.
2 long, 1 short Scroll loc k blinking Sys tem failure (prior to video initialization).
None All three blink in sequence Keyboard loc ked in network mode.
None NUM lock steady on ROMPAQ diskette not present, bad, or driv e not ready.
None CAP lock steady on P assword prompt.
None All three blink together ROM flash failed.
None All three steady on Succes sful ROM flash.
NOTE:
[1] PS/2 keyboard only.