Be very careful trying this. For PSU stop the fan by inserting some strong plastic like a pen to stop the fan. You only need to stop it for a few seconds and if the noise goes then you have the culprit. If not then take off the case side and gently press on CPU fan with your finger, just slightly slowing it down without stopping it, same for all open fans. Any fan in a casing then do the same for PSU and you will find the noisy nuisance.
Agree with above, just placing the tip of your finger lightly on the fan will stop it, there is no force to the drive at all! One word of caution, with the CPU fan stop it only for 1 or 2 seconds at a time, the heat from the CPU can increase rapidly. j.
Thanks to the advice about troubleshooting fans earlier, I have managed to isolate the problem fan. I belive it is the one on the motherboard. I'm very much a novice when it comes to hardware so can someone advise whether its easy or not to change this part? and if so are they expensive?
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