earlier i took my computer outside to clean out the insides. i took out my RAM and video card. i used a vacuum hose to get most of the dust out. then as i finished cleaning, i saw on the back of the power supply a red switch, so i switched it out of curiosity to see what it says. it said '230v' so i switch it back to the '115v' side.. no harm no foul. then i installed a dvd burner that i've been putting off. i reinstalled my video card and RAM. then when i went to start it up, there is this high pitched noise. i can't pinpoint exactly where inside my computer it's coming from cuz it's too loud to hold my ear up to it. please help cuz man i hope its not the motherboard. i don't know if any of these events led to this problem
high pitched noise from computer.. help!
- Thread starter datbomb
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