IBM RS/6000 SP, Maintenance Information

Page: 40 / 388

MAP 0120: Supervisor Bus Problem
003 (continued)
– Perform all tests of "Verification Test for Supervisor Bus" in
IBM RS/6000 SP: Maintenance Infor-
mation, Volume 3, Locations and Service Procedures.
Does this verification test pass?
Yes No
004
Restart this MAP at Step 001 on page 1-19.
005
Problem resolved.
– Go to “MAP 0570: End of Call” on page 1-357.
006
– Check frame supervisor LED #4 (top yellow LED) or frame supervisor LED #6 (if a twin-tail frame super-
visor card is being used).
Is frame supervisor LED #4 or LED #6 (twin-tail) flashing?
Yes No
007
Probable defective frame supervisor card, or incorrect supervisor code loaded on card.
– Replace frame supervisor card.
Is the problem resolved?
Yes No
008
– Call next level of support.
009
– Go to “MAP 0570: End of Call” on page 1-357.
010
Frame supervisor may be hung.
–
Type the following command from the control workstation:
hmcmds -Gv run_post frame#:ð
– Check frame supervisor LED #4 (top yellow LED) or LED #6 (if twin-tail).
Is frame supervisor LED #4 or LED #6 (twin-tail) flashing?
Yes No
011
– Go to Step 053 on page 1-29.
012
– Replace frame supervisor card.
(Step 012 continues)
1-20
RS/6000 SP MAPs