IBM 867431X Hardware Maintenance Manual - Page 142

Undetermined problems, Message, Action, Failure reading I2C device., Replace system board

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12C Buses x,y,...,z bad or devices on this bus are functioning incorrectly. where the numbers listed x,y,...,z represent any of the buses that are experiencing a fault. The table below provides the appropriate actions to take for each bus number listed. Message Failure reading I2C device. Check devices on bus 0. Failure reading I2C device. Check devices on bus 1. Failure reading I2C device. Check devices on bus 2. Failure reading I2C device. Check devices on bus 3. Failure reading I2C device. Check devices on bus 4. Action 1. Replace system board 1. Front Panel 2. Replace system board 1. Replace DASD backplane 2. Replace system board 1. Replace system board 1. Replace DIMM 2. Replace system board Undetermined problems You are here because the diagnostic tests did not identify the failure, the Devices List is incorrect, or the system is inoperative. If this has occurred proceed as follows: Note: A corrupt CMOS can cause undetermined problems. 1. Ensure that the system is connected to an AC power source. 2. Press the power switch. Note: If AC power has been removed from system, allow 30 seconds after restoring AC power before pressing power control button. See "Turning on the server" on page 8. Note: If system was powered-on when AC power was removed, system should restart automatically when AC power is restored. 3. Are the power indicator LEDs (front and rear) ON or blinking? a. No. Check AC power into system. If AC power into system is good, suspect the following FRUs in the order listed: 1) Power supply 2) System board b. Yes, power indicators (front and rear) are blinking. Turn switch 1 on switch block 1 to ON. If system powers-on, turn switch 1 on switch block 1 to OFF and replace front panel assembly. If system does not power-on, reconfigure system to minimum operating requirements and retry. If problem remains, suspect the following FRUs in the order listed: 1) Power supply 2) System board c. Yes, power indicator LEDs (front and rear) are ON. 1) Power-off system. 2) Ensure system is cabled correctly. 3) Reconfigure system to minimum operating requirements. Note: Minimum operating requirements are: 134 Hardware Maintenance Manual: xSeries 330 Type 8674, IntelliStation R Pro Type 6851, and Network Equipment Building System Type 8674

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12C Buses x,y,...,z bad or devices on this bus are functioning incorrectly.
where the numbers listed x,y,...,z represent any of the buses that are experiencing a
fault. The table below provides the appropriate actions to take for each bus
number listed.
Message
Action
Failure reading I2C device.
Check devices
on bus 0.
1.
Replace system board
Failure reading I2C device.
Check devices
on bus 1.
1.
Front Panel
2.
Replace system board
Failure reading I2C device.
Check devices
on bus 2.
1.
Replace DASD backplane
2.
Replace system board
Failure reading I2C device.
Check devices
on bus 3.
1.
Replace system board
Failure reading I2C device.
Check devices
on bus 4.
1.
Replace DIMM
2.
Replace system board
Undetermined problems
You are here because the diagnostic tests did not identify the failure, the Devices
List is incorrect, or the system is inoperative. If this has occurred proceed as
follows:
Note:
A corrupt CMOS can cause undetermined problems.
1.
Ensure that the system is connected to an AC power source.
2.
Press the power switch.
Note:
If AC power has been removed from system, allow 30 seconds after
restoring AC power before pressing power control button. See
“
Turning
on the server
”
on page 8.
Note:
If system was powered-on when AC power was removed, system should
restart automatically when AC power is restored.
3.
Are the power indicator LEDs (front and rear) ON or blinking?
a.
No. Check AC power into system. If AC power into system is good, suspect
the following FRUs in the order listed:
1)
Power supply
2)
System board
b.
Yes, power indicators (front and rear) are blinking.
Turn switch 1 on switch block 1 to ON. If system powers-on, turn switch 1
on switch block 1 to OFF and replace front panel assembly. If system does
not power-on, reconfigure system to minimum operating requirements and
retry. If problem remains, suspect the following FRUs in the order listed:
1)
Power supply
2)
System board
c.
Yes, power indicator LEDs (front and rear) are ON.
1)
Power-off system.
2)
Ensure system is cabled correctly.
3)
Reconfigure system to minimum operating requirements.
Note:
Minimum operating requirements are:
134
Hardware Maintenance Manual: xSeries 330 Type 8674, IntelliStation R Pro Type 6851, and Network Equipment Building
System Type 8674