Case that have enclosed space for PS.

[porschetr]

Cases like Antec P180/P182, Lian LI PC-A10B, they give its power supply a room and have not much room on top or bottom side of the PS.

Is it ok to use a power supply that has a fan mounted on top/bottom side instead of where the power switch is?

Cases like this,
http://www.overclockersonline....ages/installation6.jpg

and PS like this
http://images10.newegg.com/New...mage/17-256-008-02.jpg

Would it get enough air?

 

[Zepper]

Most cases that isolate the PSU have an air intake for the space, just orient the PSU to take best advantage of the available air.

.bh.

 

[vernonion]

PC Power & Cooling make some of the best PSU's on the market and they have addressed the PSU fan issue in their article about PSU Myths. Read specifically item 6 and 7: http://www.pcpower.com/technology/myths/

 

[Zepper]

Looks like PCP&C are trying to peddle their own myth with their no. 6. Technically unsophisticated people won't know the difference.

.bh.

 

[Navid]

Originally posted by: vernonion
PC Power & Cooling make some of the best PSU's on the market and they have addressed the PSU fan issue in their article about PSU Myths. Read specifically item 6 and 7: http://www.pcpower.com/technology/myths/

6. SHOULD AN ATX POWER SUPPLY BE COOLED WITH A 120MM FAN?
Most low-noise ATX power supplies today utilize a top-mounted 120mm fan


Top-mounted?
I don't think so!

 

[BonzaiDuck]

IMHO, with older or cheaper PSU's you need to assure unrestricted airflow through the power-supply, and 120mm fans would be preferred. For example, my OCZ PowerStream 520 has 80mm fans front and rear, and gets a bit warm. The efficiency for that model is somewhere closer to 75% -- if not lower.

Now I'm been successively using a Seasonic S12 650HT and a Seasonic M12 700. The S12 is rated at 88% efficiency, and the M12 at 85%. You really have to sandpaper your fingers to feel the air output from the Seasonics -- the fan speed is very low. But they don't feel any warmer than my case exterior.

With such PSU's in a pressurized case, you could probably turn off the fan in the PSU (if that were even possible without voiding warranty) -- and they'd still feel almost as cool.