Chapter 3. Error Messages And Codes; Chapter 3.1 Power On Self Test Messages - Compaq 486 Maintenance And Service Manual

Chapter 3. Error Messages and Codes

This chapter contains Power On Self Test (POST) messages, Diagnostic error
codes, and memory error codes for the COMPAQ PORTABLE 486c Personal Computer.
The messages and codes appear in tables that list the message or error code,
a description of the error or its probable cause, and the action recommended
to resolve the error condition.

Chapter 3.1 Power On Self Test Messages

An error message results if a problem is encountered during POST, which runs
automatically when the system is turned on.
Table 3-1 lists the messages for POST, the audible (beep) messages, probable
causes, and recommended actions.
Table 3-1. Power On Self Test Messages
=============================================================================
Message
-----------------------------------------------------------------------------
101 - ROM Error
101 - I/O ROM Error
-----------------------------------------------------------------------------
102 - Processor
Board Failure
-----------------------------------------------------------------------------
162 - System Options
Not Set
-----------------------------------------------------------------------------
163 - Time and
Date Not Set
-----------------------------------------------------------------------------
164 - Memory Size
Error
-----------------------------------------------------------------------------
170 - Expansion
Device
-----------------------------------------------------------------------------
172 - EISA
Configuration
Nonvolatile
Memory
173 - EISA Slot ID
Beeps Probable Cause
1 Long, System ROM
1 Short checksum
1 Long, Option ROM
1 Short checksum
None Processor board:
DMA timers, etc.
2 Short Configuration
incorrect or no
diskette drive
2 Short Invalid time or
date in
configuration
memory
2 Short Configuration
memory size
incorrect
1 Short EISA board not
ready after
power on delay
1 Short Nonvolatile
configuration
memory corrupt or
jumper installed
1 Short Board replaced,
Recommended Action
The following steps
apply to error
code 101:
1. Inspect the ROM
placement.
2. Verify the correct
ROM.
3. Replace the ROM.
Replace the processor
board.
Run COMPAQ EISA
Configuration utility.
Run COMPAQ EISA
Configuration utility.
Run COMPAQ EISA
Configuration utility.
Run COMPAQ EISA
Configuration utility
Run COMPAQ EISA
Configuration utility
for error codes 172-xx
through 177-xx.