Fujitsu M10-1, M10-4 and M10-4S High FAN Rotation Speeds Causes Noisy Systems (Doc ID 2035857.1)

Last updated on JULY 25, 2017

Applies to:

Fujitsu M10-1 - Version All Versions to All Versions [Release All Releases]
Fujitsu M10-4 - Version All Versions to All Versions [Release All Releases]
Fujitsu M10-4S - Version All Versions to All Versions [Release All Releases]
SPARC

Symptoms

XCP2250 can cause inappropriate FAN speed changes when the environment temperature changes a few degrees

Model Symptom
M10-1

When a system power on is performed:

(1) System power on may fail due to multiple FAN error detection indicating "FAN Speed too low"

(2) FAN rotation speed might change to high speed (Level-5)

M10-4/M10-4S

(3) FAN rotation speed might change to higher than usual in spite of system power-off state.

Example for M10-1

(1): System power on may fail due to multiple FAN error detection indicating "FAN Speed too low".

The power-on failure can be identified by the following error log.

Changes

 

Cause

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