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Positive air pressure on Antec 1200? (with water cooling)

post #1 of 12
Thread Starter 
I'm planning on building a new computer and I have all the parts lined up. I'm getting the Antec 1200 case and I'm worried about dust. I live in a house that was built in 1857 and my computer is in the basement. We have 2 cats and a dog, so dust is really a problem. I know to keep dust out of a case you need positive pressure (more CFM in taking air than out taking), but not too much of an imbalance because that puts more strain on the fans, and worse temps. The problem is with the cooling of the 1200 is it has negative pressure, unless all the front fans are on full blast. I just have an idea of how to achieve that positive pressure without much hassle and even better temps with my water cooling setup. I just want some feedback on if this will work and if there are any better ways to go about this. Here's the setup I was thinking:
[ATTACH]235220[/ATTACH]

The only problem that I can see is at the rear of the case where the top 120mm will suck in some heat from the bottom exhaust fan. But if you flip the rear-top fan to exhaust, and the bottom one to intake, I would think that would cause much more problematic turbulence inside the case. What do you think of this setup? Would it work? Other than creating more positive pressure within the case, I would think I should get better temps because of the top fan in taking cool air from outside instead of the preheated air from inside of the case. I don't know. Any suggestions? Any help would be appreciated. biggrinsmiley.gif

P.S. Sorry about the length and my crappy ability to explain things!
    
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post #2 of 12
positive pressure doesn't remove dust, you have to put fan filters in front of the intake fans to remove dust. if you don't use filters, a positive pressure case can have more dust then a negative pressure case.

depending on the location of the case itself. you can have the top fan(filtered) blowing air into the case and have both of the fans on the rad blowing air out. you don't want a intake/exhaust fan on the rad as indicated in your picture because you are recirculating hot air.

if you ARE going to change the top fan into an intake. make sure there is plenty of space around the case so that the hot air doesn't get recirculated back into the case with the top fan blowing in.
Edited by psyclum - 10/21/11 at 10:39pm
post #3 of 12
Thread Starter 
Quote:
Originally Posted by psyclum;15404153 
positive pressure doesn't remove dust, you have to put fan filters in front of the intake fans to remove dust.

depending on the location of the case itself. you can have the top fan(filtered) blowing air into the case and have both of the fans on the rad blowing air out. you don't want a intake/exhaust fan on the rad as indicated in your picture because you are recirculating hot air.

if you ARE going to change the top fan into an intake. make sure there is plenty of space around the case so that the hot air doesn't get recirculated back into the case with the top fan blowing in.

I'm just trying to prevent dust, not remove it, with positive pressure while getting the best cooling. And if you looked at the picture I have dust filters on all of the intake fans. I have looked into flipping the 200mm fan on top to intake, there is enough space around the case but it is extremely difficult to filter the 200mm properly. Me and my friend tried it on his 902 case, it was extremely difficult to get the filter on the case just because of the way antec designs there cases, it looked horrible and it blocked airflow more than we liked.
    
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post #4 of 12
Flipping that fan around on the rad can cause the already heated air to begin to circulate causing bad temps. In addition It will also be sucking in the PSU and GPU's heated air. The 1200 works great using it the way it was designed. But if you are set on this move the rad to the front intakes. This will alleviate the circulation issue
post #5 of 12
You wont fit a rad in the back, it will hit the top fan.
Quote:
I'm getting the Antec 1200

Just don't buy it.
Edited by andrewmchugh - 10/22/11 at 12:23pm
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post #6 of 12
Quote:
Originally Posted by andrewmchugh;15409992 
You wont fit a rad in the back, it will hit the top fan.



Just don't buy it.

Cut the fan grills and mount the rad on the outside works.
But I agree water cooling in the 1200 all internally is a challenge.
post #7 of 12
Thread Starter 
thanks for the responses! I realize it probably won't work, it was just an idea. I was thinking about putting the 240 rad on the inside of the hard drive cages, like Tagi suggested, Could you mount the rad on two of those black plastic pieces that attach to the hard drive cages? i can get an extra one from one of my friends, as long as its secure i would think that would work. I don't want to mount anything outside the case I want to keep everything internal. Also if you guys know of any better cases for mounting a 240x120 radiator let me know, but i would like a side window, whats the point in having flashy looking mobos, cool graphics cards, and led lights if you can't admire them every once and a while?
    
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Antec p180 
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post #8 of 12
Quote:
Originally Posted by Crazyb56;15410524 
thanks for the responses! I realize it probably won't work, it was just an idea. I was thinking about putting the 240 rad on the inside of the hard drive cages, like Tagi suggested, Could you mount the rad on two of those black plastic pieces that attach to the hard drive cages? i can get an extra one from one of my friends, as long as its secure i would think that would work. I don't want to mount anything outside the case I want to keep everything internal. Also if you guys know of any better cases for mounting a 240x120 radiator let me know, but i would like a side window, whats the point in having flashy looking mobos, cool graphics cards, and led lights if you can't admire them every once and a while?

I have a 360 internally, but ive had the case a good while I would had rather had an 800D or a Silverstone, so I just did what I could with the antec.
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post #9 of 12
Quote:
Originally Posted by Crazyb56;15410524 
Could you mount the rad on two of those black plastic pieces that attach to the hard drive cages?

If your talking about those plastic fan mounts with the little Fan dial on it then yes kinda. Its more you mount the rad so that when those are put in they but up against each other. Use a small L bracket from any hardware store to mount the rad.
post #10 of 12
Quote:
Originally Posted by Tagi;15411727 
If your talking about those plastic fan mounts with the little Fan dial on it then yes kinda. Its more you mount the rad so that when those are put in they but up against each other. Use a small L bracket from any hardware store to mount the rad.

Yeh, or if you dont want to drill anything this is what I did.

DSCF2695-1-1.jpg

Btw OP, If you used two of them plastic fan holders the holes wouldnt like up on the second one.
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