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Memory Checkout

Notes:

1. Power-off the computer before removing or replacing

any parts.

2. Run AUTOMATIC CONFIGURATION after removing

or replacing memory modules. (If you have to run

configuration with your own diskette, be sure the

customer has all the correct option diskettes

available.)

3. Disregard 164 Memory-Size Errors.

(Model L40 does not work with the combination of two

4MB memory modules installed.)

001

– Remove the memory module kits in connectors 1 and 2

if installed. Note which memory module kit is in

connector 1.

– Run the memory tests.

Use the RUN TESTS ONE TIME option.

DID THE MEMORY TESTS END WITHOUT AN ERROR?

Yes No

002

Replace the system board.

003

DID YOU REMOVE THE MEMORY MODULE KIT IN

CONNECTOR 1?

Yes No

004

Go to Step 007.

005

– Reinstall the memory module in connector 1.

– Run the memory test.

Use the RUN TESTS ONE TIME option.

DID THE MEMORY TESTS END WITHOUT AN ERROR?

Yes No

006

Replace the memory module in connector 1.

If that does not correct the problem, replace the

system board.

007

(Step 007 continues)

Model L40 SX (8543) 25

IBM L40 SX Service Manual

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