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Is it ok to mount the power supply upside down ? - Page 2

post #11 of 17
Quote:
Originally Posted by Subzero11;13432098 
I'm on the verge of ordering the Antec 300 with CORSAIR CMPSU-650TX psu but realized that the fan would be blowing down in the case.

Can I mount the psu upside down is it designed to work like that ? What way do I want the fan blowing ? If amounted upside down will the bolts line up to the holes ?

If mounted upside down is that going to be counterproductive for the case airflow ?

Should I get a psu that shoots the air to the rear of the unit ?

I'm sorry by the way I'm asking alot questions today. I'm going to be ordering the parts tonight after supper and I want to make sure I'm getting the right stuff.

thanks

You keep saying the fan will be blowing inside the case and that's physically impossible. The fan you are seeing on the one side of the power supply is an INTAKE fan. It's pulling the air in to cool components and then exhausts it out the back of the casing.

Meaning that every PSU you look at will be exhausting the hot air out the back and intaking air through the top where the fan is, not vice versa. Well all of them aside from completely passive power supplies.
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post #12 of 17
Quote:
Originally Posted by Subzero11;13432178 
By looking at pics of the case it looks like there a gap about 3/4 between the psu and the floor of the case. Which way would guys mount it ? or should I get a psu thats shoots the to rear ?

Dude, the fan on your PSU sucks air in, blowing air out the vent in back(out of the case). 3/4in. may not be enough space for airflow.. the case may need a vent in the bottom, or mount the PSU with the fan pointing up.

edit* heh, Blackbalt.. we posted pretty much the same thing at the same time...lol
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post #13 of 17
Antec 300 owner here. Got my psu upside down. Theres a 3/4 inch gap when you mount the psu. Mine's been that way for years now. No prob encountered. smile.gif Also, my psu is not modular. The cable is nearer to the right side of the case when its upside down. Its the reason why i flipped it. smile.gif
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post #14 of 17
Quote:
Originally Posted by blackbalt89;13432248 
You keep saying the fan will be blowing inside the case and that's physically impossible. The fan you are seeing on the one side of the power supply is an INTAKE fan. It's pulling the air in to cool components and then exhausts it out the back of the casing.

Meaning that every PSU you look at will be exhausting the hot air out the back and intaking air through the top where the fan is, not vice versa. Well all of them aside from completely passive power supplies.

yes, for OP, the only reason you may want to flip it upside down is for cable manegment.

depending on the power capacity of the psu itself, you may want to eigther leave it upside down if it needs intense cooling (higher wattage)
or cut a mirror hole vent in the bottom of the case.

note that if you cut a hole you will need a filter installed, as the fan will intake alot of dust and may 'splode you psu.


i dont have a vent cut in my case, but i also dont think my psu is a high enough wattage to burn. there is intake vents on the back of it, so the exhaust fan will be sucking air through it, as well as the bit of air from the space between the floor and the psu, as well as fresh air comming straight from the hdd bay fan.
post #15 of 17
Yes, as long as you have ventilation at the bottom of your case. It even makes cable management easier.
post #16 of 17
Quote:
Originally Posted by KillerBunnys122;13432238 
I don't see how cable management is any different confused.gif

I mean all you're prettymuch doing is changing what side the cables coming out of the thing are. (woah what, that sentence broke my brain...redface.gif)

It is better if anything...not sure where you guys are getting its worse..When you flip most PSU's over, so the fan is on bottom, your moving the Wire's that exit out the back of the PSU closer to the inner mobo tray..
In plain english you get more PSU cord lengh behind the mobo try. Flip it over, drill holes in the case if you have to. I perfer my PSU to pull cool air form out side the case myself.
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post #17 of 17
As stated above the giant fan on the power supply is an intake, but with a bottom mount psu case i would want the fan facing down more for the fact I wouldn't want anything falling into the power supply.

Also for the proce of the Antec 300 I would buy something that had some better cable management options for the sake of airflow and other good features.

Check out the Zalman Z9

or the Rosewill Challenger

or the NZXT Gama and M59
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