IBM RS/6000 SP, Maintenance Information

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MAP 0170: Thin Processor Node Control
Priority Component Action
1 Cable N00-NS-P107 to N00-PL-P22 1. Check for proper seating and continuity. See
Table 1-7 on page 1-78. If no problem is found,
continue at Priority 2.
2. Repair or replace cable assembly as required.
3. Go to Step 025 on page 1-78 to verify fix.
2 Node Supervisor Card 1. Replace card.
2. Perform "Verification Test for Supervisor Bus" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures.
3. Go to Step 025 on page 1-78 to verify fix.
3 Planar Board 1. Replace board.
2. Go to Step 025 on page 1-78 to verify fix.
4 All replaced Call next level of support.
Node supervisor card N00-NS-J107 to I/O planar N00-PL-J22 cable check points:
Table 1-7. Cable Continuity Check Points
Signal From To
Reset N00-NS-P107 pin A12 N00-PL-P22 pin 7
Service N00-NS-P107 pin A13 N00-PL-P22 pin 3
Secure N00-NS-P107 pin B12 N00-PL-P22 pin 2
025
Component has been repaired or replaced.
– Remove processor node from service position.
– Reconnect all cables at rear of the processor node.
– If not already done, verify that cables and components are seated properly.
– If not already done, install processor node top cover, then reinstall processor node in frame.
– Put the circuit breaker at the front of the processor node in the On (‘1’) position.
– Go to Step 018 on page 1-76 to continue service.
026
No response from TTY console for a processor node.
– Make sure processor node was IPLed in NORMAL mode.
– From system file server, telnet into this processor node:
telnet nodename
– Log in as “root”.
– Check to make sure that the TTY port on the processor node is correctly defined per customer require-
ments.
1. Check console configuration by issuing the following command in the processor node's window:
smit console
Use the menu options to check and/or reconfigure the console as required. If the console is not
configured to use the TTY port, then the processor node will not print messages to the screen
during IPL.
(Step 026 continues)
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RS/6000 SP MAPs