Weird PWM fan control on MSI Mobo?

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Joined
10 Oct 2003
Posts
193
Location
Nottingham
Hi,

Quite new to PWM fan control. Have an Akasa PWM splitter (FLEXA FP5) powering 1x Akasa 140mm fan and 2x Akasa 120mm fans from one PWM CPU fan header and one molex plug. Every so often the fan speeds seem to spike and then drop. Have attached a screenshot of the MSI command center showing this.

Image: http://oi63.tinypic.com/mcuddi.jpg

Is this right? I would have thought with the fan curve profile, that as temperature increases fan speed would increase incrementally. Though the image seems to suggest that it jumps. I'm not sure I believe that the CPU suddenly jumps in temperature and the resulting fan increase makes it jump right back to where it was?

Any help appreciated!

Thanks! :)
 
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