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IBM PS/1 - Page 87

IBM PS/1
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072 (continued)
DID YOU RECEIVE AN XXXXXX XXXX 201, 203, OR 221 POST
ERROR?
Yes No
073
Your system memory is now functioning correctly. If you
suspect an intermittent problem, start an error log. If you need
instructions, refer to “Error Log” on page 3-9.
074
Swap SIMMs one at a time with a known good SIMM until the
symptom goes away. Replace the failing SIMM.
075
DID YOU RECEIVE A 209 ERROR?
Yes No
076
Go to Step 078.
077
Remove and replace system board cache by bank until the error goes
away. Refer to “486SX 33MHz (72-Pin Memory SIMM) System Board
Layout” on page 5-15 through “486DX 25MHz/486DX2 50MHz or 486DX
33MHz/486DX2 66MHz (72-Pin Memory SIMM) System Board Layout” on
page 5-17.
If the error remains, replace the system board.
078
(From step 076)
(Step 078 continues)
Diagnostic Information 2-49

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