Noisy fan

My computer seems to generate a loud noise after an hour or so while leaving it on. Im guessing that this is caused by either the CPU fan or the fan which is inside the power supply. Do you think I should replace one of the fans or do you have another possible solution to reduce the noise?

Hi zaydurrahman

That the fan kicks in after an hour, or at least steps up in rotations, might
indicate heat to be the culprit. Whenever your PC needs to get rid of excess
heat, the fans speed up. As for what fan that might be, I dunno. It could be
any of them, including your GPU fan on your graphic card if it has its own fan.

You could download this little utility program. Take note of all temperatures
right after boot. When you hear the fan(s) kicks in, take new notes.
Compare them, and if the heat fluctuations is very great, it may be time
for some cleaning of the interior in your casing.
(Wouldn't hurt anyways. If you need a guide on this, just say so )

CPUID-HWMonitor: http://www.cpuid.com/hwmonitor.php

No install is needed. Just unzip it, and double-click the HW-Monitor icon.

Regards Abydos

The recommendations of Abydos will most likely get you going. I feel compelled to comment upon your question about which fan, particularly your reference to PSU fan. The PSU is enclosed and separate from the rest of the machine…. for a reason. The capacitors in your PSU are powerful and hold their electrical charge for a "long time" even days, even after you have unplugged the machine from the power cord. The electrical potential inside of a PSU, even when unplugged is sufficient to seriously injure and even kill you. No one should open up their PSU casing, even to replace a fan, unless they are highly competent as an electrician and use standard (extreme) caution. This is just a cautionary warning. Don't go there unless you completely know what you are doing. Uhmmm. and as an additional comment, you should know what you are doing with regard to static and electrical risk any time you decide to work inside of the computer case, even if you are not working close to the PSU. Best Regards, Doug