IBM RS/6000 SP, Maintenance Information

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MAP 0250: 604 or 604e High Node Environment
017 (continued)
Is the power supplies green LED Off?
Yes No
018
– Go to Step 033 on page 1-128.
019
– Check for 48 volts present at the high node power supply cable end(s) P1 and P2 (if N_1 power is
present), at the rear of node. Measure voltage between any one of: pin 1, pin 2, or pin 3 and any one
of: pin 7, pin 8, or pin 9.
Is the 48 volts missing?
Yes No
020
– Problem with 48 volts sensing.
– Go to Step 022.
021
– Go to Step 026 on page 1-127.
022
Problem with 48 volts sensing.
– From the control workstation, power off the processor node.
– Place the processor node in the service position.
–
Use the following prioritized table to continue service:
Priority Component Action
1 Node supervisor card 1. Replace card
2. Go to Step 023 on page 1-127
2 SIB card 1. Replace card
2. Go to Step 023 on page 1-127
3 IOD card 1. Replace card
2. Go to Step 023 on page 1-127
4 Lateral planar 1 card 1. Replace card
2. Go to Step 023 on page 1-127
5 Media module/operator panel cable 1. Replace cable
2. Go to Step 023 on page 1-127
6 CPU planar 1. Replace planar
2. Go to Step 023 on page 1-127
7 I/O planar 1. Replace planar
2. Go to Step 023 on page 1-127
8 All replaced Call next level of support.
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RS/6000 SP MAPs