IBM RS6000 Service Guide - Page 110

Table 3-5 (Page 7 of 10). Firmware Checkpoints. Checkpoint Description E1DD Early processor exception E1DE E1DF E1E0 E1E1 E1E2 E1E3 E1E4 E1E5 E1E6 E1E7 E1E8 E1E9 E1EA Alternating pattern of E1DE and E1AD is used to indicate a Default Catch condition before the firmware "checkpoint" word is available. Create diskette drive (disk) node Program flash Flash update complete Initialize System I/O PReP boot image initialization. Initialize Super I/O with default values. XCOFF boot image initialization. Set up early memory allocation heap. PE boot image initialization. Initialize primary diskette drive (polled mode). ELF boot image initialization. Firmware flash corrupted, load from diskette. Action/ Possible Failing FRU I/O board (See notes on 3-1.) See the note on 3-29. 1. I/O board (See notes on 3-1.) See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. See the note on 3-29. 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 "Update" on page 5-22. If the diskette is installed with the correct recovery image, then suspect: 1. Diskette 2. Diskette drive 3. Diskette cable 4. I/O board (See notes on 3-1.) See the note on 3-29. 3-38 Service Guide