what's the 'correct' PSU orientation ?

[KD]

I have a Tagan TG-480-U15 easycon PSU www.tagan.com

Does it matter whether it is mounted with the fan on the top or on the
bottom ?. All the pictures on the Tagan web site show the fan on top and
so do all the photos in the handbook though it doesn't actaully say.

I've always thought Fan DOWN in an ATX case to take heat from the CPU, but
am wondering if it really makes much difference any more as the fans in
modern PSUs dont do that much cooling anymore (other than for themselves) -
my CPU is ducted to the rear case fan.

Anyone got any comments ?

Kevin

 

[Jb]

Don't the screw positions decide the orientation?

Jb

 

[KD]

no its rectangular - well it actually comes with a rear mount plate that
goes on either way.

 

[Jb]

Hmm I checked the site and it don't 'elp do it! Personally I'd go fan up if
your case has vents for it, down if it don't. It's a big fan and is going to
move a lot of air so make sure there aren't too many obstructions.

That's my twopennorth anyway

Good luck

Jb

 

[Conor]

I have a Tagan TG-480-U15 easycon PSU www.tagan.com

Does it matter whether it is mounted with the fan on the top or on the
bottom ?. All the pictures on the Tagan web site show the fan on top and
so do all the photos in the handbook though it doesn't actaully say.

I've always thought Fan DOWN in an ATX case to take heat from the CPU, but
am wondering if it really makes much difference any more as the fans in
modern PSUs dont do that much cooling anymore (other than for themselves) -
my CPU is ducted to the rear case fan.

Anyone got any comments ?

The PSU doesn't care. I'd just point out that heat rises so it sems
daft putting it in with a solid face to the top and a vented one to the
bottom.

 

[Tweek]

The fan pulls air in and pushes it out of the back of the PSU. Generally the
fan would point down and help cool the case also. It should be fan down
unless your case has an opening on the top to pull cool air in. In this case
it would just cool the PSU and not pull much air out of the case itself.

 

[Robbie McFerren]

<snip (The server made me!)
Yes, point it down. When I replaced my PSU recently my Max CPU temp
dropped by 3-5 degrees C.