MAP 1541: JTAG Problem Isolation
Step 1541-1
Record the error code and location code(s) that sent you to this MAP.
Step 1541-2
Turn off the power.
Step 1541-3
Replace the following, if present, one at a time and in the order listed:
v First location code item recorded, if any, “Step 1541-1”.
v Second location code item recorded, if any, in “Step 1541-1”.
v Third location code item recorded, if any, in “Step 1541-1”.
v Fourth location code item recorded, if any, in “Step 1541-1”.
v Replace the CEC backplane at U0.1-P1.
v Processor card at location U0.1-P1-C1 if not recorded in “Step 1541-1”.
v All memory DIMMS on processor card 1 at location U0.1-P1-C1-Mn (n equals 1 to 8), if not recorded in
“Step 1541-1”.
v Processor card at location U0.1-P1-C2 if not recorded in “Step 1541-1”.
v All memory DIMMS on processor card 2 at location U0.1-P1-C2-Mn (n equals 1 to 8), if not recorded in
“Step 1541-1”.
v PCI riser card at U0.1-P2.
Step 1541-4
Turn on the power.
Step 1541-5
Did the system stop with the same error code as recorded in “Step 1541-1”?
Yes Go to “Step 1541-6”.
No The part just replaced was defective. This ends the procedure.
Return the system to its original configuration.
Go to ″MAP 0410: Repair Checkout″ in the RS/6000 Eserver pSeries Diagnostic Information for
Multiple Bus Systems.
Step 1541-6
Have all the cards listed in “Step 1541-3” been replaced?
Yes Go to “Step 1541-7”.
No Go to “Step 1541-2”.
Step 1541-7
Turn off the power. Call for support.
126 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide
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