IBM pSeries 630 6C4 Service Manual page 96

Step 1240-5
One of the FRUs remaining in the system unit is defective.
1. Turn off the power. Remove the power cord.
2. Exchange the following FRUs one at a time in the order listed:
v CEC backplane
v Processor cards
3. Reattach the power cord. Wait for OK to display in the operator panel.
4. Turn on the power. Attempt to boot to the SMS menus. (The system may stop with an 8-digit error
code before it reaches the SMS menus.)
5. Power off the system using the white button. After the OK displays in the operator panel, look at the
memory configuration/deconfiguration menu.
Are any DIMMs deconfigured or does the error code recorded in "Step 1240-1" on page 74 still
appear?
No Enable memory repeat gard if necessary.
Go to "MAP 0410: Repair Checkout" in the RS/6000 Eserver pSeries Diagnostic Information for
Multiple Bus Systems.
Yes Reinstall the original FRU.
Repeat this step until the defective FRU is identified or all the FRUs have been exchanged.
If the symptom did not change and all FRUs have been exchanged, go to "MAP 1548: Processor
Subsystem Problem Isolation" on page 139.
Step 1240-6
1. Turn off the power. Remove the power cord.
2. Reseat the DIMMs. Reinstall the processor card.
3. Reattach the power cord. Wait for OK to display in the operator panel.
4. Turn on the power. Attempt to boot to the SMS menus. (The system may stop with an 8-digit error
code before it reaches the SMS menus.)
5. Power off the system using the white button. After the OK displays in the operator panel, look at the
memory configuration/deconfiguration menu.
Are any DIMMs deconfigured or does the error code recorded in "Step 1240-1" on page 74 still
appear?
NO Reseating the DIMMs has corrected the problem.
Enable memory repeat gard if necessary.
Go to "MAP 0410: Repair Checkout" in the RS/6000 Eserver pSeries Diagnostic Information for
Multiple Bus Systems.
YES If there is only one quad of DIMMs on the card, go to "Step 1240-10" on page 78.
If there are two quads of DIMMs on the card, go to "Step 1240-7" on page 77.
76 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide