IBM 265, Service Manual

Page: 117 / 365

Table 2. Firmware Checkpoints. (continued)
Checkpoint Description Action/ Possible Failing FRU
E1EB Verify flash EPROM recovery image.
1. Ensure that the diskette installed
contains recovery image appropriate
for this system unit.
Refer to “Checking the Current
Firmware Levels” on page 339.
2. If the diskette is installed with the
correct recovery image, then
suspect:
a. Diskette
b. Diskette drive
c. Diskette cable
d. Replace the system board.
Location: P1
(See notes on page 109.)
3. See “Unresolved Checkpoint
Problems” on page 81.
E1EC Get recovery image entry point See “Unresolved Checkpoint Problems”
on page 81.
E1ED Invalidate instruction cache See “Unresolved Checkpoint Problems”
on page 81.
E1EE Jump to composite image See “Unresolved Checkpoint Problems”
on page 81.
E1EF Erase flash See “Unresolved Checkpoint Problems”
on page 81.
E1F0 Start OBE See “Unresolved Checkpoint Problems”
on page 81.
E1F1 Begin self-test sequence on boot
device(s) See “Unresolved Checkpoint Problems”
on page 81.
E1F2 Power-on password prompt. Prompt should be visible on the
firmware console.
If a console is attached but nothing is
displayed on it, go to the “Quick Entry
MAP” on page 32 with the symptom
″
All
display problems.
″
E1F3 Privileged-access password prompt. Prompt should be visible on the
firmware console.
If a console is attached but nothing is
displayed on it, go to the “Quick Entry
MAP” on page 32 with the symptom
″
All
display problems.
″
E1F5 Build boot device list. See “Unresolved Checkpoint Problems”
on page 81.
E1F6 Determine boot device sequence. See “Unresolved Checkpoint Problems”
on page 81.
Chapter 4. Checkpoints
101