IBM B50 manual Bus SRN to FRU Reference Table, Bus ID, Possible Failing Device and, Associated FRU

Bus SRN to FRU Reference Table

This table is used to locate defective FRUs within the system board PCI and ISA buses, and indicates which devices should be tested for each SRN. For this procedure, if possible, diagnostics are run on the riser card bus devices with all

adapters removed from the failing bus. If a failure is detected on this system with all adapters removed from the failing bus, the riser card is the isolated FRU. If a failure is not detected, the adapters are added back one at a time, to their original slot location, and the configuration is tested until a failure is detected. The failure is then isolated to the failing FRU.

If a failure has not been detected and all the FRUs have been tested, call your technical service support person for assistance.

SRN	Bus ID	Possible Failing Device and	Associated FRU
		AIX Location Code
9CC-100	PCI Bus 00	Internal SCSI port 1 (10-80)	system board (see note 3 on
			page 2-1,and at the end of
			this table).
		Internal/External SCSI port 2	system board (see note 3 on
		(30-58)	page 2-1,and at the end of
			this table).
		Internal Ethernet port (10-60)	system board (see note 3 on
			page 2-1,and at the end of
			this table).
		Device installed in I/O Slot 2	Adapter
		(10-90 to 10-97).
		Device installed in I/O Slot 1	Adapter
		(10-b0 to 10-b7).
651-730	ISA Bus	Diskette Drive port/device	system board (see note 3 on
		(01-D1-00-00)	page 2-1,and at the end of
			this table).
		Parallel port/device (01-R1)	system board (see note 3 on
			page 2-1,and at the end of
			this table).
		Serial ports (1-2)/device	system board (see note 3 on
		(01-S1 to 01-S2).	page 2-1,and at the end of
			this table).
		Mouse port/device	system board (see note 3 on
		(01-K1-01-00).	page 2-1,and at the end of
			this table).
		Keyboard port/device	system board (see note 3 on
		(01-K1-00-00).	page 2-1,and at the end of
			this table).
		Audio port/device (01-Q2).	system board (see note 3 on
			page 2-1,and at the end of
			this table).

3-127046 Model B50 Service Guide