Compaq 486 Maintenance And Service Manual page 18

Mismatch
174 - EISA
Configuration/
Slot Mismatch
175 - EISA
Configuration/
Slot Mismatch
176 - Slot with
Unreadable ID
177 - Configuration
Not Complete
-----------------------------------------------------------------------------
Message
-----------------------------------------------------------------------------
178 - Processor
Configuration
-----------------------------------------------------------------------------
XX000Y ZZ *
201 - Memory Error
-----------------------------------------------------------------------------
XX000Y ZZ *
203 - Memory
Address Error
-----------------------------------------------------------------------------
205 - Memory Error
XXYYYYY
ZZZZZZZZ
-----------------------------------------------------------------------------
301 - Keyboard
Error
-----------------------------------------------------------------------------
303 - Keyboard
Controller Error
-----------------------------------------------------------------------------
304 - Keyboard or
System Unit
Error
-----------------------------------------------------------------------------
501 - Display
Adapter Failure
-----------------------------------------------------------------------------
Message
-----------------------------------------------------------------------------
601 - Diskette
Controller Error
configuration not
updated
1 Short EISA board
not found
1 Short EISA board added,
configuration not
updated
1 Short EISA board in
slot that should
contain ISA board
1 Short Incomplete EISA
configuration
Beeps Probable Cause
1 Short System board type
invalid or step
does not match
configuration memory
None RAM failure
None Memory failure
None Cache Memory
controller or
RAM failure
None Keyboard
failure
None Processor board,
keyboard, or
mouse
None Keyboard or
processor board
1 Long, Video display
2 Short controller
Beeps Probable Cause
None Diskette Controller
circuitry
Recommended Action
Run COMPAQ EISA
Configuration utility.
1. Replace the
memory module
(see Figure 3-1).
2. Replace the
processor board.
Replace the
processor board.
Run Diagnostics.
1. Check that keyboard
is connected.
2. Replace the
keyboard.
Replace the keyboard,
mouse or I/O board.
1. Replace the
keyboard.
2. Replace the
processor board.
Replace the video board
Recommended Action
1. Replace the power
distribution board