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Power supply fan not spinning

post #1 of 8
Thread Starter 
I have an Ultra X-Finity 600 Watt PSU - Black PSU, model number:ULT31848. Any way for some reason it's fans are not spinning, which I'm sure is causing it to overheat. Anyone have an idea why? Anyone know a way of fixing this?
post #2 of 8
if the fans are not spinning they are shot...i had this problem with a psu once...i opened up the thing and replaced the fan...of course it was way out of warranty so i would see if your still have your warranty in effect for your psu...if not...bust that bad boy open...of course with the precaution tho that its pretty dangerous of doing so due to capacitors storing large amounts of energy. Good luck tho
 
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post #3 of 8
Quote:
Originally Posted by APOLLOSTEES View Post
I have an Ultra X-Finity 600 Watt PSU - Black PSU, model number:ULT31848. Any way for some reason it's fans are not spinning, which I'm sure is causing it to overheat. Anyone have an idea why? Anyone know a way of fixing this?
Ultra has Lifetime Warranty with registration.... go RMA.
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post #4 of 8
Thread Starter 
Man I hate to have to RMA anything, it's such a lengthy process. But, I can't just leave this thing running as it is. Oh well at least I can RMA it. Thanks guys. Rep+

Oh and by the way, when I have to remove this PSU do you think this will make me lose my overclock?
post #5 of 8
It shouldn't, as the BIOS info is stored and supplied power by the CMOS battery.

But I'd make a note of your overclock settings just to be safe
    
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post #6 of 8
Quote:
Originally Posted by APOLLOSTEES View Post
Man I hate to have to RMA anything, it's such a lengthy process. But, I can't just leave this thing running as it is. Oh well at least I can RMA it. Thanks guys. Rep+

Oh and by the way, when I have to remove this PSU do you think this will make me lose my overclock?
No. You CAN'T leave it running the way it is. You'll kill it completely.

RMA it. Ultra does advanced replacements by default. They'll have the new one on the way before you have to pull your old one out. And SpuddGunn is right about the CMOS battery. It should keep all of your settings.
post #7 of 8
Quote:
Originally Posted by jonnyGURU View Post
And SpuddGunn is right about the CMOS battery. It should keep all of your settings.
Unless you don't get a new PSU for 10 years... then you would lose your settings.
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post #8 of 8
I made an account here just to post this because it came up when searching for a remedy for the problem..

**DO NOT ATTEMPT IF YOU DO NOT FEEL COMFORTABLE MESSING AROUND IN THERE! You can get a very nasty shock by not knowing what you're doing touching the wrong thing!

I have the exact same model exact same problem.. I have a small background in electronics so naturally I popped her open to see what I could do. This is the first time ever messing with one of these.

Turns out the fans were good. The thermostat circuit was what was broke. This circuit is a small PCB that is screwed onto the left big heat sink (with the PSU wire harness facing you and the AC plug on the back). I saw that it had a yellow wire supplying 12vdc running from the bottom board to it, its located on the bottom right corner of the PCB. Poked around with the voltmeter just to make sure.

All I did was solder the RED fan wires to that particular spot where the 12 volts comes into the PCB. You do not have to do anything with the BLACK wires.

To test outside a PC, short pins 15&16 with a piece of wire, plug in the AC, and turn on the switch. The fans should come on.

Now, this can wear your fans out a lil faster since now they aren't being throttled, but its better than not working at all!

Oh, and yes, I did make sure there wasn't a funky bios setting keeping the fans off.

Update: Definitely got sick of the noise of the fans on full blast so I threw in a potentiometer to make it adjustable.
Edited by Auto_Turret - 2/9/10 at 4:07pm
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