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Firmware Checkpoints
The following Fxx code checkpoints are displayed on the operator panel during
system startup, and can be used for diagnostic purposes.
If you replace FRUs and the problem is still not corrected, go to MAP 0030 in the
Diagnostics Information for Multiple Bus Systems unless otherwise indicated in the
tables.
Table 3-4 (Page 1 of 5). Firmware Checkpoints.
Checkpoint Description Action/
Possible Failing FRU
F01 Performing system memory test
(May take several minutes if large
amount of memory installed.)
1. Memory modules.
2. System board
F05 Transfer control to Operating
System (normal boot).
See “Fxx Code Boot Problems” on
page 3-18.
F22 No memory detected (system
lockup) Note: The disk drive light is
on continuously.
1. Memory modules
2. System board. (See 3-1.)
F2C Processor card mismatch (Model
240)
If more than one processor card is
installed in the Model 240, both
processor cards must be of the
same speed and type.
F4D Loading boot image See “Fxx Code Boot Problems” on
page 3-18.
F4F NVRAM initialization Go to “MAP 1540: Minimum
Configuration” on page 2-21.
F51 Probing primary PCI bus 1. PCI Adapters
2. Riser card
3. System board.
If a network adapter or system
board is replaced, see 3-1.
F52 Probing for adapter FCODE,
evaluate if present
1. PCI Adapters
2. Riser card
3. System board.
If a network adapter or system
board is replaced, see 3-1.
3-14 7043 43P Series Service Guide