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Dead PSU fan

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  • Power Supplies
  • Fan
  • Components
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Last response: in Components
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December 14, 2011 5:55:08 PM

So my corsair 750TX fan stopped spinning after 2 years. Anyone have any horror stories where you didnt notice it and the worst happened?

for about a week now Ive been hearing a rattling coming from a fan. I thought it was my coolermaster V8 fan, so I ordered a replacement (sometimes its really hard to tell). So last night while playing skyrim I started smelling the faint odor of something beginning to burn(no smoke, but a definite scent), checked my cpu/gpu temps both fine(neither peaked over 52C while playing). Then it dawned on me I dont hear the rattling fan anymore. reach down to the bottom rear of my PC touched the back of the PSU and it was hot hot hot, put my hand under the case to feel if air is blowing out of the PSU and nope no air (My case sits on an old plastic milk crate from the 80's, so the fan on the psu actually has room to blow air out the bottom of the case).

Youd figure there should be some sort of sensor on the PSU to beep or something when the fan kicks it, so your dont have to rely on your sense of smell to prevent it from potentially taking your system with it (and in a horrible case, your house). As for the PSU itself. Frankly I expected a little better from corsair (although I know one individuals experience shouldnt sour the bunch).

So I ultimately just shutdown my PC unplugged it and ordered a new PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

This series got a great review on jonnyguru.

More about : dead psu fan

a b ) Power supply
December 14, 2011 6:27:24 PM

tsd16 said:
So my corsair 750TX fan stopped spinning after 2 years. Anyone have any horror stories where you didnt notice it and the worst happened?

for about a week now Ive been hearing a rattling coming from a fan. I thought it was my coolermaster V8 fan, so I ordered a replacement (sometimes its really hard to tell). So last night while playing skyrim I started smelling the faint odor of something beginning to burn(no smoke, but a definite scent), checked my cpu/gpu temps both fine(neither peaked over 52C while playing). Then it dawned on me I dont hear the rattling fan anymore. reach down to the bottom rear of my PC touched the back of the PSU and it was hot hot hot, put my hand under the case to feel if air is blowing out of the PSU and nope no air (My case sits on an old plastic milk crate from the 80's, so the fan on the psu actually has room to blow air out the bottom of the case).

Youd figure there should be some sort of sensor on the PSU to beep or something when the fan kicks it, so your dont have to rely on your sense of smell to prevent it from potentially taking your system with it (and in a horrible case, your house). As for the PSU itself. Frankly I expected a little better from corsair (although I know one individuals experience shouldnt sour the bunch).

So I ultimately just shutdown my PC unplugged it and ordered a new PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

This series got a great review on jonnyguru.



Why didn't you just replace the fan?
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December 14, 2011 6:32:13 PM

ram1009 said:
Why didn't you just replace the fan?


because frankly im going to believe the message on the PSU and not go tinkering inside the thing with stuff I know nothing about.
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a b ) Power supply
December 14, 2011 7:41:32 PM

tsd16 said:
because frankly im going to believe the message on the PSU and not go tinkering inside the thing with stuff I know nothing about.



If you're throwing away the PSU you can send it to me. :D 
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a c 243 ) Power supply
December 14, 2011 9:22:22 PM

tsd16 said:
So my corsair 750TX fan stopped spinning after 2 years. Anyone have any horror stories where you didnt notice it and the worst happened?

for about a week now Ive been hearing a rattling coming from a fan. I thought it was my coolermaster V8 fan, so I ordered a replacement (sometimes its really hard to tell). So last night while playing skyrim I started smelling the faint odor of something beginning to burn(no smoke, but a definite scent), checked my cpu/gpu temps both fine(neither peaked over 52C while playing). Then it dawned on me I dont hear the rattling fan anymore. reach down to the bottom rear of my PC touched the back of the PSU and it was hot hot hot, put my hand under the case to feel if air is blowing out of the PSU and nope no air (My case sits on an old plastic milk crate from the 80's, so the fan on the psu actually has room to blow air out the bottom of the case).

Youd figure there should be some sort of sensor on the PSU to beep or something when the fan kicks it, so your dont have to rely on your sense of smell to prevent it from potentially taking your system with it (and in a horrible case, your house). As for the PSU itself. Frankly I expected a little better from corsair (although I know one individuals experience shouldnt sour the bunch).

So I ultimately just shutdown my PC unplugged it and ordered a new PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

This series got a great review on jonnyguru.

5 year warranty, no ?
Sucks, but it happens.
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a b ) Power supply
December 14, 2011 9:31:34 PM

It is easy to replace a fan in a power supply, don't throw the faulty power supply away. If you were to run the power supply for any length of time without the fan running then what normally happens is the 5V output rectifiers go short circuit.
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a b ) Power supply
December 15, 2011 2:28:36 AM

This is why SOME PSU's have a set of wires emerging that look like 3-pin fan connector, and SOME mobo's have a "fan connector" labelled PWR_FAN. What those actually do is send the speed pulse signal from the PSU's internal fan to the mobo where it can be monitored in BIOS and possible alarms issued if it fails. These connections do NOT actually provide power to the fan, nor do they control the PSU fan's speed. Those functions are done inside the PSU. But the fan speed signal is monitored. However, not all PSU's or mobo's have this feature.
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a c 144 ) Power supply
December 15, 2011 5:02:31 AM

tsd16 said:
(My case sits on an old plastic milk crate from the 80's, so the fan on the psu actually has room to blow air out the bottom of the case).

PSU fans do not work that way. A bottom mouted CPU fan sucks air into the PSU and exhausts it out the back of the CPU.
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a c 94 ) Power supply
December 15, 2011 5:46:28 AM

I was thinking the same thing. I'd gladly pay for shipping to 95966 and whatever you want for the PSU. (within reason of course.) I just got paid so let me know before I blow the $$$ on something else. I'm serious here.
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