Computer fan speeds up and slows down

When my computer is on, which is virtually all the moment, I guess it"s the cooling fan in ago, however, it repetitively slows and also speeds up

and it is driving me nuts. Many of the time when I"m not using it, I simply shut it down. Just wondering if anyone has any kind of suggestions

on what I have to perform. Thanks

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Hi smileyboy,

The fans usually increase in speed (assuming you have actually a fan temperature manage chip) once the inside of the COMPUTER situation hits a specific temperature. Once the warm has been dispated then the fan speed will reduce aacquire. That is what normally happens. If the fan speed is up and also down without any particular factor then it could be the temperature chip leading to the problem or the fan might be faulty; either means a repair technician would certainly must look at it.

Before you perform that, though, attempt opening the case. I assume we are talking about a desktop computer PC? If it is a lapoptimal then take it to a repair shop, accessing the fan in a lapheight is quite tricky if you do not know what you are doing. As i"ve sassist, if it is a desktop computer, rerelocate the side panel (initially via the machine switched off - rerelocate the plug from the power supply and rmemeber to earth yourself before emotional anything inside.) Now look at the fan(s). Is there a develop up of dust/grime on the fan blades? If so gently brush the dust of with a little, clean artist brush. Check the warmth sink additionally on the CPU. If dust has accumulated in the warmth sink finials then blow it out through a can of clean air. Try running the machine through the cover off to watch if the additional air flow cures the trouble. Your PC might be overheating leading to the fan(s) to rate as much as cool thing dvery own. Listen to the fans to check out if you deserve to isolate which fan is causing the problem. You will have one fan on peak of the CPU (porcessor); you may additionally have actually an extractor fan on the ago of the instance. Another fan is situated in the PSU (power supply unit). PSU fans, but, should be looked at by a qualified technician.

John Barnett MVP: Windows XP Associate Expert: Windows Desktop Experience: Web: ; Web: ; Web: ; Web: