IBM 7015-R50, Installation And Service Manual

Page: 116 / 300

3-1540-14
Service Guide
Step 13
(from Steps 19, 20, 21, 22)
1. Set the power button on the CPU Enclosure to Off.
2. Unplug both PDB outlet power cords from both power supply power cords.
3. Record the location of all the internal SCSI devices attached to the SCSI bus you are
attempting to IPL from.
4. If there are any external SCSI devices attached to the SIB bus you are attempting to IPL
from, then unplug the cable and insert a terminator.
5. Remove all SCSI devices except the CD-ROM drive.
6. Plug both PDB outlet power cords into both power supply power cords.
7. Set the power button on the CPU Enclosure to On.
8. If the Maintenance Menu is displayed, select
System Boot
, Boot From List.
9. If the system stops with a
260
displayed, and the Main Menu is displayed, Select
Exit
Main Menu and Start System (Boot)
and press Enter. When the “Starting
System Boot” menu displays, press Enter. Repeat this procedure each time these
conditions occur.
10.Wait for one of the following conditions to occur:
•
The system stops with a flashing or solid
269
displayed in the operator panel display.
•
The system stops with
c31
displayed in the operator panel display.
Is
c31
displayed in the operator panel display
?
NO One of the FRUs remaining in the CPU Enclosure is defective. Go to Step
14.
YES Go to Step 18.