I just picked up an Antec 300 and I love it. But I'm wondering if I should mount my PS upside-down or not. It has a 120mm fan on the bottom of the PSU, and there looks to be enough space at the bottom to provide some intake airflow (about a fingers width). I don't have an issue putting it in upside-down, except I kind of worry about stuff falling into the fan grille/inside of the PSU (stray cable, dropped screw, dust, whatever). And I wonder if it messes with the routing of the airflow if it's pulling air down when it should be heading up and out the top two fans. What say you?
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Power supply upside-down or not?
- Thread starter oldpablo
- Start date
Even though there would be a little bit of room on the bottom of the PSU, thats a pretty small area and there will be some cables in the area, etc. Personally I would mod that case with a hole on the bottom directly under the PSU intake fan and mount the PSU unit with the fan down. It would receive some air from the front 120 fan and some air from directly below the case and you wouldn't have to worry about things falling into the PSU (which is something I worry about also).
Also you would have more air flowing to your GPU and CPU from that front fan.
(edit) also, if you haven't done modding before, this would be a great place to start. With just a dremel, drill, cutters, whatever you can make a hole that wont be seen. In fact an easy way to do it would to just drill about 20 3/8" holes on the bottom. That would not affect the structural strength and give plenty of airflow.
Also you would have more air flowing to your GPU and CPU from that front fan.
(edit) also, if you haven't done modding before, this would be a great place to start. With just a dremel, drill, cutters, whatever you can make a hole that wont be seen. In fact an easy way to do it would to just drill about 20 3/8" holes on the bottom. That would not affect the structural strength and give plenty of airflow.
I have an Antec 900 case, I had my PSU mounted upside down, but I dropped screws into the grill twice, luckily I was able to retrieve them. Also the PSU fan was competing for air with the cooling fan on my bottom video card, maybe a little over 1/2" between them. My roommate is an HVAC installer guy so I was able to borrow his tool for cutting large holes in ductwork and made a nice neat round hole in the bottom of the case the same size as the PSU fan and flipped it over. PSU exhaust temps are about the same going by my palm-o-meter and the temp on my bottom video card dropped from 47* to 45*C at idle, plus I think it looks a little nicer with the labeling of the PSU being visible and right side up.
Well, if you're going to mod the case you can do pretty much anything you like. However, having the suggestions of the PS fan blowing upward or making a hole in the bottom are nice relatively simple ways to make it better. The case did have feet? Otherwise add this to the mod so the hole in the bottom will do some good.
Potentially you could flip the fans around in the PSU and have them blow up. But only do this if you're comfortable working inside the PSU. ATX spec requires that PSU fans are exhaust so you will have to flip the PSU fans, no other way around that.
Personally I'd grab some case feet and cut a hole in the bottom of the case and have the PSU directly draw cool air from the bottom. Need large enough feet so you have good air flow and the turbulence doesn't cause extra case noise.
Personally I'd grab some case feet and cut a hole in the bottom of the case and have the PSU directly draw cool air from the bottom. Need large enough feet so you have good air flow and the turbulence doesn't cause extra case noise.