IBM RS/6000 44P 270 Service Manual page 103

Table 2. Firmware Checkpoints. (continued)
Checkpoint Description
E1EB Verify flash EEPROM recovery image.
E1EC Get recovery image entry point
E1ED Invalidate instruction cache
E1EE Jump to composite image
E1EF Erase flash
E1F0 Start O.B.E.
E1F1 Begin self-test sequence on boot
device(s)
E1F2 Power-on password prompt.
E1F3 Privileged-access password prompt.
E1F5 Build boot device list.
Action/ Possible Failing FRU
1. Ensure that the diskette installed
contains recovery image appropriate
for this system unit.
The System Management Services
recovery procedure for the flash
EEPROM should be executed. See
"Firmware Update" on page 207.
2. If the diskette is installed with the
correct recovery image, then
suspect:
v Diskette drive
v Diskette cable
v I/O board (See notes on page
93.)
3. Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1540: Minimum
Configuration" on page 50.
Prompt should be visible on the system
console.
If a console is attached but nothing is
displayed on it, go to the "Quick Entry
MAP" on page 27 with the symptom "All
display problems."
Prompt should be visible on the system
console.
If a console is attached but nothing is
displayed on it, go to the "Quick Entry
MAP" on page 27 with the symptom "All
display problems."
Go to "MAP 1540: Minimum
Configuration" on page 50.
Chapter 4. Checkpoints
85