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corsair cx750w psu fan blows into case?

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June 23, 2013 8:07:03 PM

Today I noticed that the psu fan on my brothers computer blows air into the case....shouldn't it be the other way around? Otherwise the psu works fine...but should I see if it's easy enough to flip the fan around? The funny thing is that I looked up pictures of the psu and the fan LOOKs like it is oriented correctly.
June 23, 2013 8:10:54 PM

This is why I recommend a 80Plus Plantinum, they dump half the waste heat into the computer as the Bronze series does.
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June 23, 2013 8:16:44 PM

Some people flip over their PSU. It looks upside down but the orientation is correct.
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June 23, 2013 8:27:13 PM

The power supply is suppose to suck air from inside of the case and blow it out the back of the PSU (i.e. the side where the AC outlet and main power switch is located) if it's a top mounted PSU.

If the computer case supports a bottom mounted PSU, and the case has vent holes on the bottom where the PSU is mounted, then the PSU is supposed to be installed with the PSU fan facing down against the vent holes so that it is able to pull cooler outside air through the PSU. Just make sure that the computer case is not sitting on a carpet or on a surface that will block the computer case's bottom vent holes.

The Corsair CX750's 120mm fan is an intake fan. If you place your hand near its fan you should feel air being sucked into the PSU. If you feel the fan blowing air out of the PSU then you should contact Corsair and have it exchanged for one that works properly.
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June 23, 2013 10:35:12 PM

ko888 said:
The power supply is suppose to suck air from inside of the case and blow it out the back of the PSU (i.e. the side where the AC outlet and main power switch is located) if it's a top mounted PSU.

If the computer case supports a bottom mounted PSU, and the case has vent holes on the bottom where the PSU is mounted, then the PSU is supposed to be installed with the PSU fan facing down against the vent holes so that it is able to pull cooler outside air through the PSU. Just make sure that the computer case is not sitting on a carpet or on a surface that will block the computer case's bottom vent holes.

The Corsair CX750's 120mm fan is an intake fan. If you place your hand near its fan you should feel air being sucked into the PSU. If you feel the fan blowing air out of the PSU then you should contact Corsair and have it exchanged for one that works properly.

Yeah I forgot to mention that caveat....if you flip the PSU so it pulls air in from the bottom then you need to make sure the case has vent holes and is not on carpet.
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June 24, 2013 11:44:35 AM

There's no warranty on it and he bought it over a month ago so he can't return it to newegg. How hard would it be to just open it up and flip the fan around?
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June 24, 2013 11:47:41 AM

genoe said:
There's no warranty on it and he bought it over a month ago so he can't return it to newegg. How hard would it be to just open it up and flip the fan around?


You can open an RMA with Corsair since it has a 3 Year manufacturer's warranty.
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