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Service Hints & Tips

Document ID: DETR-44KJ3B

Aptiva - 2144/2168 (SL-C) Diagnostics - Memory

Applicable to: World-Wide

Notes:

1. Type C-1 and Type C-2 system boards require gold-plated SIMMs.

2. SIMMs must be set in the Configuration Utility for correct parity
setting. On Type C-1 system boards, check the parity jumper setting
(J50, see "System Board Layouts--Machine Types 2144 and 2168" in
topic 5.1).

3. To operate, Type C-1 system boards must have at least one good SIMM
installed in either socket. Type C-2 system boards must have at least
one good SIMM installed in J22, and SIMMs must be installed in the
order specified in Table 5-2 in topic 5.6. See "SIMM Configurations"
in topic 5.6.

4. When removing or installing a SIMM, run the Configuration Utility (and
set the date and time) to clear any XX62 errors. See "POST Error
Codes" in topic 2.1.

___
|001|
|___|
- Power off the system unit.
- Ensure all SIMMs are seated correctly.
- Insert the Advanced Diagnostics diskette into drive A.
- Power on the system unit.
- Note any messages, error codes, or symptoms. Disregard 164 errors
(memory size).
DID YOU RECEIVE A 201 or 203 POST ERROR?
Yes No
| |
| |
| |__
| |002|
| |___|
| DID YOU RECEIVE A 229 ERROR?
| Yes No
| | |
| | |__
| | |003|
| | |___|
| | Go to Step 006.
| |
| |
| |__
| |004|
| |___|
|
| Note: Type C-1 system boards have only internal cache; replace the
| system board if cache memory is failing. Type C-2 system
| boards have pluggable cache modules; continue with these steps
| to determine whether to replace the cache memory modules or
| the system board.
|
| - Check the cache jumper settings on the system board (see "System
| Board Layouts--Machine Types 2144 and 2168" in topic 5.1).
| - Remove and replace the system board cache memory and tag address
| module by bank until the error goes away.
|
| Note: The cache bank tag address modules for Bank 1 and 2 are
| different. Make sure when replacing cache bank tag address modules
| that you replace the correct tag address module. See "Type C-2
| Cache Memory Module Upgrades" in topic 5.1.8.
| ______________________________________________________________________
|
|
|__
|005|
|___|
- Press 0 (SYSTEM CHECKOUT), then press Enter.
- Press Y when the Installed Devices list appears.
- Select the 0 (RUN TESTS ONE TIME) option, then press Enter.
- Follow the screen instructions to run the Memory tests.
- If you cannot run the memory test or the test does not find a problem,
use the following procedure to find the failure.
- Replace each SIMM, one at a time, with a known-good SIMM of the same
size.

Note: To operate, Type C-1 system boards must have at least one good
SIMM installed in either socket. Type C-2 system boards must
have SIMMs installed in the order specified in Table 5-2 in
topic 5.6. See "SIMM Configurations" in topic 5.6.

- If the problem goes away, the last SIMM replaced is defective. If all
SIMMs have been replaced and the problem remains, replace the system
board.
--------------------------------------------------------------------------------

___
|006|
|___|
(From step 003)
- Press 0 (SYSTEM CHECKOUT), then press Enter.
- Press Y when the Installed Devices list appears.
- Select the 0 (RUN TESTS ONE TIME) option, then press Enter.
- Follow the screen instructions to run the Memory tests.
DID THE MEMORY TESTS COMPLETE WITHOUT AN ERROR?
Yes No
| |
| |
| |__
| |007|
| |___|
| - Replace each SIMM, one at a time, with a known-good SIMM of the
| same size.
|
| Note: To operate, Type C-1 system boards must have at least one
| good SIMM installed in either socket. Type C-2 system
| boards must have SIMMs installed in the order specified in
| Table 5-2 in topic 5.6. See "SIMM Configurations" in
| topic 5.6.
|
| - If the problem goes away, the last SIMM replaced is defective. If
| all SIMMs have been replaced and the problem remains, replace the
| system board.
|
|__
|008|
|___|
- Your system memory is now functioning correctly. If you suspect an
intermittent problem, run the Memory test multiple times.
--------------------------------------------------------------------------------

	Search Keywords
	Hint Category	Memory, Diagnostics
	Date Created	28-01-99
	Last Updated	28-01-99
	Revision Date	28-01-2000
	Brand	IBM Aptiva
	Product Family	Aptiva
	Machine Type	2144, 2168
	Model	22P; 24P; 25P; 29P; 14P; 26P; 62P; 66P; 16P; 82P; 86P; 27P; 83P; 22F; 24F; 25F; 26F; 62F; 27F; 18P; 19P; 20P; WM1; WM2; SW2; 743; 843; 744; 754; 853; 854; 755; 766; 866; 784; 785; 787; 887; 789; 889; 797; 745; 767; 855; 756; 786; 782; 788; 888; 792; 798; 768; 856; 857; 8K2; S86; S82; T82; H55; H66; H77; H78; H89; H92; H67; H80; H81; H90; H93; L55; L66; L77; L78; L89; L92; L67; L80; L81; L90; L93; K66; K77; KB1; KB2; K78; K89; K92; KB3; K67; K80; K81; KB4; MB4; KB5; MB5; K90; K93; KB6; X65; X70; X88; X79; X89; X90; Y65; Y70; Y78; Y84; Y88; Y79; Y89; Y90; 26J; 68J; 62J; 27J; 28J; 63J; 64J; 65J
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