Host Built-In Self Test (Bist); Bus Fault Messages - IBM 884155U User Manual

Host built-in self test (BIST)

Note: See "System replaceable units" on page 144 to determine which components should be replaced by a field
service technician.
Message
Host fail
(level-informational; built-in self-test for the
host failed)

Bus fault messages

Note: See "System replaceable units" on page 144 to determine which components should be replaced by a field
service technician.

Bus fault messages

Failure reading 12C device.
Check devices on bus 0.
Failure reading 12C device.
Check devices on bus 1.
Failure reading 12C device.
Check devices on bus 2.
Failure reading 12C device.
Check devices on bus 3.
Failure reading I2C device.
Check device on bus 4.
Action
1. Reseat the microprocessor.
2. Reseat the VRM.
3. Replace the microprocessor CPU.
Action
1. If installed, reseat the I2C cable between Remote Supervisor
Adapter and system board.
2. Memory DIMMs.
3. System board.
1. Reseat the I2C cable between the operator information panel
and system board.
2. Operator information panel.
3. System board.
1. Reseat the cable between system board and the power supply
(power cage assembly, if installed).
2. Power cage assembly, if installed.
3. Power supply.
4. System board.
1. Reseat the cable between the DASD backplane and connector
of system board.
2. DASD backplane.
3. System board.
v System board
Chapter 6. Symptom-to-FRU index
139