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Bus error messages
Note: See Chapter 7, “Parts listing, BladeCenter T Type 8720 and 8730,” on page 107 to determine which
components should be replaced by a field service technician.
Message Action
Failure reading I2C device. Check
devices on bus 1.
1. Reset the management module.
2. Reseat the management module.
3. Reflash the management module.
4. Replace the management module.
Failure reading I2C device. Check
devices on bus 2.
1. Reset the management module.
2. Reseat the management module.
3. Replace the management module.
4. Replace the midplane.
Failure reading I2C device. Check
devices on bus 3.
1. Reseat the power modules.
2. Reseat the management module.
3. Replace the power modules.
4. Replace the management module.
5. Replace the midplane.
Failure reading I2C device. Check
devices on bus 4.
1. Reseat the management module.
2. Reseat the cables connected to the front panel customer interface
card.
3. Reseat the cables connected to the rear panel customer interface
card.
4. Replace the front panel customer interface card.
5. Replace the rear panel customer interface card.
6. Replace the management module.
7. Replace the midplane.
Failure reading I2C device. Check
devices on bus 5.
1. Reseat the switch modules.
2. Reseat the management module.
3. Replace the switch modules.
4. Replace the management module.
5. Replace the midplane.
Undetermined problems
Use the information in this section if the diagnostic tests did not identify the failure,
the devices list is incorrect, or the system is inoperative.
Notes:
1. When troubleshooting a BladeCenter T problem, you must determine if the
problem is actually a blade server problem.
v If the BladeCenter T unit contains more then one blade server installed and
only one of the blade servers exhibits the symptom, most likely it is a blade
server problem.
v If all blade servers exhibit the same symptom, most likely it is a BladeCenter
T unit problem.
2. Damaged data in CMOS can cause undetermined problems.
104 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide