Symptom Action
The system stops and a 4-digit number is
displayed in the operator panel display.
If the number displayed begins with the
character "E0xx" then go to “SP Checkpoints”
on page 3-29. or "E1xx-EFFF" then go to
“Checkpoints” on page 3-29.
For all other numbers record SRN 101-xxx,
where xxx is the last three digits of the four-digit
number displayed in the operator panel, then go
to the Fast Path MAP in the
IBM RS/6000
Diagnostic Information for Multiple Bus Systems
.
Note: If the operator panel displays 2 sets of
numbers, use the bottom set of numbers as the
error code.
The power light does not come on, or stay on. Go to “MAP 1520: Power” on page 2-12.
The operator panel is blank before the system is
powered on (operator panel should display OK).
No codes are displayed on the operator panel
within a few seconds of turning on the system.
Reseat the operator panel cable.
If problem not resolved, replace in order:
1. Operator Panel Control Assembly. Remove
the VPD module from the old Operator
Panel Control Assembly (connector U2) and
place in the new one.
2. I/O planar (See notes on 2-1.)
The SMS configuration list or Boot sequence
selection menu shows more SCSI devices
attached to a controller/adapter than are actually
attached.
A device may be set to use the same SCSI bus
ID as the control adapter. Note the ID being
used by the controller/adapter (this can be
checked and/or changed via an SMS utility), and
verify that no device attached to the controller is
set to use that ID.
If settings do not appear to be in conflict:
1. Replace the SCSI cable.
2. Replace the device.
3. Replace the SCSI adapter (or I/O planar if
connected to one of the two integrated SCSI
controllers on the I/O planar). (See notes
on 2-1 if the I/O planar is replaced.)
Note: In a "Twin-tailed" configuration where
there is more than one initiator device
(normally another system) attached to
the SCSI bus, it may be necessary to
change the ID of the SCSI controller or
adapter with the System Management
Services.
You cannot load diagnostics. Go to “MAP 1020: Problem Determination” on
page 2-6.
You have a problem that does not prevent the
system from booting.
Go to the Fast Path MAP in the
IBM RS/6000
Diagnostic Information for Multiple Bus Systems
.
2-4 Service Guide
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