IBM 6C1, Service Manual

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Step 1520-10
One of the parts that was removed or unplugged is causing the problem. Install or
connect the parts in the following order:
1. Second processor card (if removed).
2. Memory card.
3. PCI adapters, lowest slot to highest slot.
4. Fans.
Turn the power on after each part is installed or connected. If the system does not
power on or the power LED on the operator panel does not stay on, the most recently
installed or connected part is causing the failure.
1. Turn off the power.
2. Unplug the power cable from the system.
3. Install or connect one of the parts in the list.
4. Plug the power cable into the system.
5. Turn on the power.
Does the power LED on the operator panel come on and stay on?
NO Replace the last part installed.
If the memory card was just installed, remove all of the memory DIMMs. If the
system does not come up, replace the memory card.
Reinstall the memory DIMMs, one pair at a time, until the problem recurs.
Replace the memory DIMM pair that was just installed.
Note: The memory DIMM pair must be installed in slots that are next to each
other. Refer to “Memory Card and Memory DIMMs” on page 266.
Repeat these steps until all the parts have been installed.
Go to “Step 1520-11”.
YES Go to
″
MAP 0410: Repair Checkout
″
in the
RS/6000
Eserver
pSeries
Diagnostic Information for Multiple Bus Systems.
Step 1520-11
Does the system contain three power supplies?
NO Go to “Step 1520-12” on page 60.
YES Go to “Step 1520-14” on page 61.
Chapter 3. Maintenance Analysis Procedures (MAPs)
59