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Strange sounds in PSU?!

post #1 of 8
Thread Starter 
Now when i power on my pc, a strange sound comes from the PSU... it sounds louder where the fan is... i dont know if is dirt, or if my PSU is dying...

What can i do?... is safe to open the PSU? can i get zapped?!
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Katrina2
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post #2 of 8
What ever you do, do not open the PSU. Period

What kind of sound is it? Is it a high pitched whining sound or kind of alow toned warble? The fan may be going.
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post #3 of 8
Oh you can get zapped alright. Touch the wrong thing and it'll easily kill you. So stay away from opening it. Like Iced said, its most likely the fan crapping out.
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'bout time.
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by Xerasyte View Post
Oh you can get zapped alright. Touch the wrong thing and it'll easily kill you. So stay away from opening it. Like Iced said, its most likely the fan crapping out.


KILL ME!?

Kill to the sky!?

And how i can fix it!?
>.>
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post #5 of 8
well if its the fan all you really need to do is take it out of the system (that means you have to unplug it too), let it discharge its capacitors for about an hour or so then open it up and replace the fan. Some places like www.performance-pcs.com sell fans that come with your psu's fan adapter. Or you could ghetto rig it to feed off of one of your molex ports.
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post #6 of 8
More like discharge for a day. There are caps in there that can kill. Instantly. 25v at 5000uF=toasty fingers.
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post #7 of 8
Heh this is funny because just last night I was moving a PSU cable inside my case, and an open SATA power cable touched the inside of my metal case and it made a shock, and then kicked off my PSU. Am I lucky that I didn't get fried or any of my components?

I learned my lesson though to never work with anything with the PC on even if its something quick.
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post #8 of 8
Quote:
Originally Posted by sP00N View Post
well if its the fan all you really need to do is take it out of the system (that means you have to unplug it too), let it discharge its capacitors for about an hour or so then open it up and replace the fan. Some places like www.performance-pcs.com sell fans that come with your psu's fan adapter. Or you could ghetto rig it to feed off of one of your molex ports.
Or a week. My PC Power 750 had been sitting for a week--I happened to turn on the power switch (PSU unplugged) and it momentarily lit the LED! The better the PSU the longer the caps take to discharge.

Here is how to safely discharge the PSU in ten seconds or more...

Unplug the AC cord and power the PC with the front panel switch--my PC will run for almost 20 seconds on the PC Power...most are 8-12.

After that the PSU is discharged and you can open it.

The fan will be a two pin fan and you will need to mod whatever fan you put in by snipping and splicing or twisting the leads to the existing pin and covering them with tape or heatshrink..It's a 5 minute fix.


While you have it open blow out the dust!
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