Specifications

Table 2. Firmware Checkpoints (continued)
Checkpoint Description Action/ Possible Failing FRU
E1C6 Create DMA node See the note on page 78.
E1D0 Create PCI SCSI node Perform Repair actions from
checkpoint E156.
E1D3 Create SCSI block device node
(SD)
Perform Repair actions from
checkpoint E156.
E1D4 Create SCSI byte device node (ST) Perform Repair actions from
checkpoint E156.
E1DB Create floppy controller (FDC) node Replace the system board. See the
note on page 78.
E1DC Dynamic console selection. If a console is attached but nothing
is displayed on it, follow the steps
associated with ″All display
problems″ in the Entry MAP tables.
If selection screen(s) can be seen
on the terminals and the
appropriate key on the input device
associated with the desired display
or terminal is pressed, within 60
seconds, but there is no response
to the keystroke:
v If selecting the console with a
keyboard attached to the
system, replace the keyboard. If
replacing the keyboard does not
fix the problem, replace the
service processor (Location
Code: P1).
v If selecting the console with an
ASCII terminal, suspect the
ASCII terminal. Use the problem
determination procedures for the
terminal. Replace the service
processor (Location Code: P1) if
these procedures do not reveal a
problem.
Note: Terminal settings should
be set to:
– 9600 Baud
– No Parity
– 8 Data bits
– 1 Stop bit
E1DE Alternating pattern of E1DE and
E1AD is used to indicate a default
catch condition before the firmware
″checkpoint″ word is available.
See the note on page 78.
E1DF Create diskette drive (disk) node See the note on page 78.
E1F0 Start O.B.E. See the note on page 78.
Chapter 4. Checkpoints
89