IBM 8688 manual Phase 3 subsystem control status error codes

Table 13. Phase 1 initial VRM determination error codes (continued)

Error message/explanation	FRU/action
0a (+1.8v PowerGood Fault)	Memory board 1.8v VRM (J31)
0b (+1.8v VRM not installed)	Processor board 1.8v VRM (J133)
0c (+1,8v PowerGood Fault)	Processor board 1.8v VRM (J133)
0d (+1.2v PowerGood Fault)	Processor board
0E (PPOD PowerGood Fault)	Processor board

*This code is displayed for a few moments after server reset or power on; then, the server continues with the startup process.

Table 14. Phase 2 clock status error codes

Error message/explanation		FRU/action
11 (33 MHz clock)		I/O board
12	(14.3 MHz clock)	I/O board
13	(62.5 MHz clock)	Midplane board
14	(200 MHz clock)	1.	Processor board
		2.	I/O board
Table 15. Phase 3 subsystem control status error codes
Error message/explanation		FRU/action
21	(PCI-X board fault or VRM not installed)	PCI-X board
22	(PCI-X board fault)	PCI-X board
23	(I/O board fault)	I/O board
24	(Compatibility RESET failed to deassert)	I/O board
25	(Cyclone initialization fault)	1.	Memory board
		2.	Midplane board
		3.	I/O board
26	(Tornado initialization fault)	1.	Processor board
		2.	Midplane board
27	(Front-side RESET fault. Reset failed to assert.)	1.	Processor board
		2.	Midplane board
28	(Front-side RESET fault. Reset failed to de-assert.)	1.	Processor board
		2.	Midplane board
29	(First Instruction Fetch Failed.)	I/O board
Table 16. Phase 4 I2C status error codes
Error message/explanation		FRU/action
31	(DMC SDA stuck low)	I/O board
32	(DMC SCL stuck low)	I/O board
33	(Midplane SDA stuck low)	Midplane board
34	(Midplane SCL stuck low)	Midplane board

182IBM xSeries 450 Type 8688: Hardware Maintenance Manual and Troubleshooting Guide