Undetermined Problems - IBM 866631Y - Netfinity 7100 - 8666 Hardware Maintenance Manual

Undetermined problems

You are here because the diagnostic tests did not identify the failure, the Devices
List is incorrect, or the system is inoperative.
Notes:
1. A corrupt CMOS can cause undetermined problems.
2. A faulty I2C Bus can cause undetermined problems. Check the system error log
Check the LEDs on all the power supplies, see"Power supply LED errors" on
page 131. If the LEDs indicate the power supplies are working correctly, return
here and do the following:
1. Power-off the computer.
2. Be sure the system is cabled correctly.
3. Remove or disconnect the following (one at a time) until you find the failure
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Hardware Maintenance Manual: Netfinity 7100 – Type 8666
Message
Failure reading I2C device. Check devices on
bus 3.
Failure reading I2C device. Check devices on
bus 4.
Failure reading I2C device. Check devices on
bus 5.
Failure reading I2C device. Check devices on
bus 6.
Failure reading I2C device. Check devices on
bus 7.
Failure reading I2C device. Check devices on
bus 8.
for any I2C Bus errors; see "I2C bus fault messages" on page 141.
(power-on the computer and reconfigure each time).
Any external devices
Surge suppressor device (on the computer)
Action
1. Reseat VRMs
2. Reseat Processor/PCI Board
3. Replace VRMs
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
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
1. Reseat CPUs
2. Reseat Processor/PCI Board
3. Replace CPUs
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
1. Reseat memory card
2. Reseat Processor/PCI Board
3. Replace memory card
4. Replace Processor/PCI Board
5. Replace I/O Legacy Board
1. Reseat Processor/PCI Board
2. Replace Processor/PCI Board
3. Replace I/O Legacy Board
1. Replace I/O Legacy Board