Why is my PC overheating?
December 29, 2005 1:36 PM Subscribe
My computer is making a funny noise and overheating. Can you help me fix it?
posted by MrZero to computers & internet (17 answers total)
My PC is occasionally making a buzzing noise. After being on for a few hours, it overheats. I hear a tone that the BIOS identifies as "CPU overheating/unseated" (or similar).
It is an older PC, about 6-7 years old, made by a company called Quantex. I've added some memory, a CD burner, a SCSI card, and a firewire card, so I've poked around inside several times. This time, I've opened it up, and the front fan and the fan mounted on the CPU heatsink both appear to be working fine. However, the power supply was pretty warm when I just opened it up, and its fan was kicking out warm air. Everything is quite dusty inside, including the fans and the power supply.
At first, I thought it was the CPU fan, but that thing looks OK. Now, I'm thinking the power supply is overheating and heating up the CPU.
Soooooo, what now? Should I blow out all the dust with compressed air? Should I replace the power supply? I'd prefer to not go to a repair service, I'm a broke student and I'm planning on replacing this PC in about a year. I'd also rather spend my Christmas money on an external hard drive. I am, however, willing to pay for a decent power supply if that's what it needs.