IBM RS/6000 SP, Maintenance Information

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MAP 0190: Processor Node Function
Condition of LEDs Action
Ÿ LEDs stop at constant 888 (followed by no other
sequence of numbers)
– IPL not starting.
1. Remove processor node from frame. Refer to
"Service Position Procedures" in IBM RS/6000 SP:
Maintenance Information, Volume 3, Locations and
Service Procedures for these procedures.
2. Check for proper seating of cards in the processor
node, especially the CPU planar and the super-
visor card.
3. If this is a thin node, perform Step 010 on
page 1-51. If the answer is no, continue with
service at Step 011 on page 1-51; otherwise, the
SRN is 101-888; use SRN table in
Diagnostic
Information for Micro Channel Bus Systems
(SA38-0532) or
Diagnostic Information for Multiple
Bus Systems (SA38-0509).
4. If this is a wide node, perform Step 008 on
page 1-99. If the answer is no, continue with
service at Step 009 on page 1-100; otherwise, the
SRN is 101-888; use SRN table in
Diagnostic
Information for Micro Channel Bus Systems
(SA38-0532) or
Diagnostic Information for Multiple
Bus Systems (SA38-0509).
5. If this is a high node, go to “MAP 0280: 604 or
604e High Node Minimum Configuration” on
page 1-145.
Ÿ LEDs stop at constant 980
– Problem with HiPS adapter-1.
Go to “MAP 0540: Switch Function” on page 1-322.
Ÿ LEDs stop at c20 - c29 during IPL
– Node boot information corrupted.
Call software support.
Ÿ
LEDs stop at c31 during IPL 1. From the node front panel, click on “OPEN TTY”
to open the tty console on this node.
2. Press “1” then ENTER in the tty console window.
3. Service IPL should continue.
Ÿ LEDs at 888-103 followed by this sequence of
numbers:
– 409-008
– 409-022
1. Remove processor node from frame. Refer to
"Service Position Procedures" in IBM RS/6000 SP:
Maintenance Information, Volume 3, Locations and
Service Procedures for these procedures.
2. Check for proper seating of cards and cables on
IOD.
3. Check flex cables for damage and freedom of
motion on the “floating” connector.
4. Change any suspected problem flex cables.
5. Go to “MAP 0280: 604 or 604e High Node
Minimum Configuration” on page 1-145.
Ÿ LEDs at 888 followed by this sequence of
numbers:
– 409-070/073/074/075
– 409-076/077/078/079
– 409-093/094/095/096
Go to
Diagnostic Information for Micro Channel Bus
Systems (SA38-0532) or Diagnostic Information for
Multiple Bus Systems (SA38-0509) to decode the fan
number information. Then go to MAP 0250: 604 or
604e High Node Environment, Step 034 on
page 1-128.
1-90
RS/6000 SP MAPs