Fujitsu SPARC M12-1
 
Fujitsu SPARC M12-2
 
Fujitsu SPARC M12-2S
 

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In this Document

Purpose

Details

References

Applies to:

Purpose

Provide additional information for message ID: M12-i2c.device-internal

Fujitsu fault codes:

01920102, 01920103, 01920104, 01920105

Details

Type

Hardware Fault

   i2c.device-internal

Severity

Major

Description

Fault due to an I2C access failure to a specific chip, where the data read back from the chip does not match the data that was written to the chip.

This type of fault implies that the chip may be configured incorrectly, and the consequences of the fault are quite unpredictable.

Examples of chips that are affected by this fault and the types of consequences that might occur:

- CPU chips on Motherboards: The PPAR using this CPU chip may reset or may hang or some other problem may occur;
- XB chips on XBU: The PPARs using this XB chip may reset or may hang or some other problem may occur.

Automated Response

No immediate action is taken. The platform administrator should schedule a service action.

Impact

If the chip being accessed is a CPU chip: The CPU chip may be deconfigured when the PPAR using the CPU chip reboots.

When the chip being accessed is a PCI express switch chip, this chip is deconfigured.

Indicted Hardware

If the chip being accessed is a CPU chip:

For M12-1 systems, the MBU is marked for replacement.

For M12-2 or M12-2S systems, the CMUU or CMUL where the faulty CPU chip is mounted, is marked for replacement.

If the chip being accessed is a XB chip: A XB way of PPARs, which are using this XB chip, is deconfigured.

Suggested Action for System Administrator

The recommended service action for this event is to schedule replacement of the affected component(s) at the earliest possible convenience. Although the hardware may be functioning, it is not intended nor recommended that the faulted component(s) remain in the system for a prolonged period of time.

Refer to the following document for the latest procedures for displaying event content in preparation for submitting a service request and applying any post-repair actions that may be required.

PSH Procedural Article for Fujitsu M10 Diagnosis (Doc ID 1525156.1)

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