Compaq 486 Maintenance And Service Manual page 27

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211 - xx Random Pattern Test
211 - 01 Memory random pattern
test failed
211 - 02 Error during saving program
memory and random pattern
in write/read test
211 - 03 Error during restore of
program memory and random
pattern in write/read test
211 - 04 Insufficient memory to
perform test
211 - 05 Inverted pattern compare,
but RAM correct
=============================================================================
Table 3-4. Keyboard Test Error Codes
=============================================================================
Error
Code Description
-----------------------------------------------------------------------------
301 - 01 Keyboard short test,
8042 self test failed
301 - 02 Keyboard short test,
interface test failed
301 - 03 Keyboard short test, echo
test failed
301 - 04 Keyboard short test failed
302 - 01 Keyboard long test failed
303 - 01 Keyboard LED test, 8042
self test failed
303 - 02 Keyboard LED test, reset
test failed
303 - 03 Keyboard LED test, reset
test failed
303 - 04 Keyboard LED test, LED
command test failed
303 - 05 Keyboard LED test, LED
command test failed
303 - 06 Keyboard LED test, LED
command test failed
303 - 07 Keyboard LED test, LED
command test failed
Recommended
Action
The following steps apply
to error codes 301 - xx
through 304 - xx:
1. Check the keyboard
connection. If
disconnected, turn off
the computer and
connect the keyboard.
2. Replace the keyboard
and retest.
3. Replace the I/O board
and retest.