High pitched sound at seemingly random times Options

[Hintswen]

My computer has been making a high pitched sound at what seems to be random times. It's a long sound and can sometimes last for hours. It hasn't happened any time I have been in a position to take off the side of my care and try and hear what it is coming from though.

It would most likely be the power supply right?

[Sando]

Do yourself a favour and get a new power supply regardless of the issue. With any luck, that SHAW PSU will end up taking out the rest of your system when it dies soon. I'd get at least a 500w PSU for your system from a reputable brand like Corsair, Seasonic, Antec - there are many other good brands but these are just a few I generally use.

[GIARUS]

I might need to get a better power supply for my desktop if i recall it only s 400
serious question upgrading your power supply does it really do anything to the comp itself besides increase the watteg