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I have a system with a Foxconn V400 series motherboard and AMD Athlon 3000+ processor. Ever since I got it a few years ago the fans (particularly the CPU fan) have been really loud. So recently I installed SpeedFan to see why they were running so fast. SpeedFan reported the CPU temperature to be 32C, and one motherboard sensor at about 26C. But the other two motherboard sensors were reporting 78C and 64C respectively. Naturally the fans were both maxed out because of this, with the CPU fan at 5800rpm and the case fan at 2400rpm. I opened the case and everything inside was literally cool to the touch, with the exception of the CPU heatsink which was slightly warm, but nowhere near 78C. It seems like the temperature sensors are either defective or being read incorrectly. Is there some way I can decrease my fan noise without risking damage to my processor? Some way to ignore those two temp sensors? Any help would be greatly appreciated.

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This site is for programming. Consider posting this on superuser.com – Abe Voelker Jun 16 '10 at 0:42
If Speedfan detects GPU (graphics card) temps, these are probably what you're seeing. – Pulse Jun 16 '10 at 1:00
SpeedFan sometimes has options to manually slow down the fan. This would be on the first screen that shows up. There are little up and down arrows in the bottom left corner that might do the trick. – James T Jun 16 '10 at 2:38
I tried clicking the arrows, but the fan speed did not change at all. – Gawain Jun 16 '10 at 2:48
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migrated from stackoverflow.com Jun 16 '10 at 0:49

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