why did my power supply make a strange sound?
i have a gaming pc. i wasn't using it but it was on and it started making a slight grrrrrrrrrr noise that sounded like it was coming form the power supply. my pc is not loud and this little noise it was making wasn't very loud either. it was just a faint grrrr. after turning of my pc and turning it back on i noticed that while booting up the sound i heard was gone bu once it was done booting up the sound came back. after the second time turning it off and back on the sound disapeard. i am using it right now and the sound is gone. does anyone now why it was making that sound? i use a air can once a month on my pc so it cant be dust and my power supply is a earthwatts 650w
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Verified answer
the bearing in the cooler went bad. It is relatively easy fix if you are handy.
If not then it is still easy and cheap fix.
If you can use a screwdriver you can fix it yourself.
Unplug your computer,
open the cover by removing 3 or 4 screws from the back and unbolt the big box that produces the noise.
Once it's out take it apart by removing 4 screws that hold a lid and you will be able to take another 4 screws off that holds the cooler inside.
Cooler will probably cost you $5-$15
If you don't feel like messing with it you can replace the whole power supply.
Those are going for 40-140
If you take it to repair shop it will probably cost you $100
I had the similar situation on my pc as well! For my rig, the sound it made was loud. It started when booting & sound for few minutes before being silent. Went to the place where I bought the pc & they said it could be some loose old parts within the PSU. My PSU was the standard PSU that came together with the PC casing so I assume that's bound to happen. If possible, you should upgrade to better PSU; e.g. by Corsair, Cooler Master or Antec