[Herts] Irritating Alarm

Kevin Sheehan confused at befuddlement.net
Tue Jul 1 18:10:51 BST 2008

Does your motherboard have speed throttling for the fans?

As I have had propblems with these a few times. I was thinking could it 
be that the motherboard is picking the temperature increase up (Not 
neccessarily overheat), trying to throttle up the fans but one of them 
is damaged or a low noise one that has a lower max RPM and this is 
setting the alarm off? I.E. at idle the RPM is above the alarm 
threshold, but throttled up it cannot reach the alarm threshold.

Anyhow just  a thought.

David Honour wrote:
> I have an alarm (on the motherboard, or at least voiced by it) that goes
> off when my system is under load (and it doesn't take much, bzflag will
> trigger it).
> Having looked into lmsensors (which i'm not sure if i can
> trust the output of), it shows no overheat or power shortage.
> It also doesn't appear in dmesg, so I think it is likely to be
> hardware, but, i cannot diagnose it.
> While the alarm is going off it appears to run as normal, hovever, it
> has been doing this on a slightly more than daily basis for some time
> now and I am becoming increasingly worried by it (and it's really loud).
> Sometimes it will stop if you close all running programs (just as if
> you were going to shut down). Sometimes you have to shut it down to
> shut it up.
> System:
> CPU: x2-3800 <- stock cooler
> Ram: 2Gb of cheap stuff
> Mobo: Abit KN8-SLI
> Graphics: 2x6600Gt SLI
> Audio: M-Audio Audiophile 2496
> HDD: Western Digital (250gb) <- I am worried about this anyway
> Optical: one dvdrw and a dvdr <- not nessacarily active when goes off
> +loads of case fans
> Any ideas, thanks
> David
> p.s. I think I will bring it to the next meeting so if there's anything
> in terms of hardware tests that you think might help, then might be the
> time.
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