IBM RS/6000 - Manual (Page 216)

Table 36 (Page 4 of 5). Firmware Checkpoint Three-Digit Codes
Code Description
FAB Keyboard driver initialization
FAC Keyboard driver exit
FAD Mouse driver initialization
FAE Mouse driver exit
FB0 Initialize rest of file system
FB1 Diskette initialization
FB2 Diskette drive type determination
FB3 Diskette initialization complete
FC0 Check if flash ROM OK
FCA Build boot table - Networks
FCB Build boot table - DASD
FCC Build boot table - CD ROM
FCD Build boot table - diskettes
FCE No Operating System boot, exit normal boot sequence
FD0 Start of boot sequence
FD2 No Operating System boot - ensure CMOS RTC periodic clock updates
displayed
FD4 Initialize console for loading diagnostics
FD8 Exit from diagnostic - run resident monitor
FDA IRQ 15
FDB Unexpected processor exception
FDC Unexpected external interrupt exception
FDD Early processor exception
FDE Shutdown entire file system
FE1 Test Timeout
FE2 Initialize System I/O
FE4 Initialize Super I/O with default values
FE6 Set up early memory allocation heap
FE8 Initialize primary diskette drive in polled mode
FEA Try to load in recovery image from diskette
FEB Verify recovery image is valid
FEC Get recovery image entry point
FED Invalidate instruction cache
FEE Jump to composite image
FF0 Manufacturing - Check for Parallel Port hook
FF4 Manufacturing - Start flag not received
FF5 Manufacturing - Invalid Start flag received
FF6 Manufacturing - Receive character timeout
FF7 Manufacturing - CRC value mismatch
192 Introduction to PCI-Based RS/6000 Servers