Step 1520-8
One of the parts that you removed or disconnected is probably defective. Install or
connect the parts one at a time in the following order to identify the failing part.
1. Processor card
2. Memory card(s)
3. Front cooling fan
4. Rear cooling fan
5. SCSI backplane power cable.
6. SCSI power cable(s), lowest bay to highest bay.
7. Adapter cards, lowest slot to highest slot.
Press the start/stop switch on the operator panel to turn the power on after each part
is installed or connected. If the system does not power on or the power does not
stay on, the most recently installed or connected part is causing the failure.
1. Turn the power off.
2. Unplug the power cord from the system unit.
3. Install or connect one of the parts in the list.
4. Plug the power cord into the system unit.
5. Press the start/stop switch on the operator panel to turn the power on.
Does the power LED on the operator panel come on and stay on?
NO Replace the last part you installed.
Repeat these steps until all the parts have been installed or connected.
If the symptom did not change and all the parts have been installed or
connected call your service support person for assistance.
If the symptom has changed, check for loose cards, cables, and obvious
problems. If you do not find a problem, return to “Step 1520-1” on page
2-24 in this MAP and follow the instructions for the new symptom.
YES Go to "MAP 410: Repair Checkout" in the
IBM RS/6000 Diagnostic
Information for Multiple Bus Systems
.
2-30 Service Guide
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