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170 Hardware Maintenance Manual: xSeries 250
Undetermined problems
You are here because the diagnostic tests did not identify the failure, the Devices List
is incorrect, or the system is inoperative.
Failure reading I2C device. Check devices
on bus 2.
1. Reseat front panel connector
2. Reseat diagnostics panel connector
3. Reseat I/O Legacy Board
4. Replace front panel
5. Replace diagnostics panel
6. Replace Power Backplane
7. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 3.
1. Reseat VRMs
2. Reseat Processor/PCI Board
3. Replace VRMs
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 4.
1. Reseat Power Backplane/DASD power
cable
2. Reseat I/O Legacy Board
3. Replace Power Backplane/DASD power
cable
4. Replace DASD Backplane
5. Replace Power Backplane
6. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 5.
1. Reseat CPUs
2. Reseat Processor/PCI Board
3. Replace CPUs
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 6.
1. Reseat memory card
2. Reseat Processor/PCI Board
3. Replace memory card
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 7.
1. Reseat Processor/PCI Board
2. Replace Processor/PCI Board
3. Replace I/O Legacy Board
Failure reading I2C device. Check devices
on bus 8.
1. Replace I/O Legacy Board
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