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CM 690 II Advanced, need fan configuration suggestions - Page 2

post #11 of 18
Quote:
Originally Posted by KhaoticKomputing View Post
I gave a quick version of my airflow...there ALOT involved with my case flow. I'm confused by the part in bold.
Sorry, the part you have in bold I wasn't referring to your case. I was talking about the second set of pics the OP posted. In the first 2 pics the top fan in the front of the case and the right fan on the top are both blowing air to the cpu cooler, just 1 would probably suffice. Also in all 3 pics the left fan on top is just blowing the hot air exhausted from the cpu cooler down to the gpu.
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post #12 of 18
Makes perfect sence now
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post #13 of 18
Thread Starter 
Thanks again for the suggestions. Yes, the card is exhausting the hot air into the case, my mistake. I made another version, which maybe is the most balanced one?
post #14 of 18
Quote:
Originally Posted by Vex. View Post
Thanks again for the suggestions. Yes, the card is exhausting the hot air into the case, my mistake. I made another version, which maybe is the most balanced one?
That is gonna be the best your going to get... unless you put the bottom fan in but that'll suck in so very much dust.
post #15 of 18
Quote:
Originally Posted by Vex. View Post
Thanks again for the suggestions. Yes, the card is exhausting the hot air into the case, my mistake. I made another version, which maybe is the most balanced one?
I suggest a change, ie orienting the CPU cooler toward the top.

Pic 1 shows that hot air (exhausted from the card's front and the air passed through the HDDs) can be sucked into the CPU cooler by the 'push'. This is obviously not desirable.

Pic 2 shows the 2 above streams of hot air being pulled up to the case top and exhausted out of the case. The CPU cooler receives its fresh air mainly from the side panel fan(s).

Check out this thread: http://www.overclock.net/computer-ca...r-ii-best.html

post #16 of 18
Quote:
Originally Posted by jackeyjoe View Post
You should be trying to keep negative pressure (aka more air being sucked out than in), this will mean that less dust will end up in the case. I think the one in the OP is perfect except for the 140mm fan at the bottom, it sucks in an insane amount of dust there (I ran mine there for a few weeks, there was so much dust!).

Oh yeah, another thing, if your GPU in your signature is accurate, I believe those MSI cards don't have external exhaust(don't quote me on it though, I thought I remembered reading people complaining about it a while back).
Other way around. More exhaust than intake will give you negative pressure inside the case which will make air enter from any hole it can find (to try making pressure the same) and therefore giving you more dust. An environment with more intakes than exhausts will allow YOU to choose where air enters (because air leaves the case through any holes not fitted with fans) and let you set up filters by all intakes. Negative pressure is usually superior for temperatures while positive pressure gives you less dust.
Edited by B!0HaZard - 5/1/11 at 2:31am
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post #17 of 18
Quote:
Originally Posted by B!0HaZard View Post
Other way around. More exhaust than intake will give you negative pressure inside the case which will make air enter from any hole it can find (to try making pressure the same) and therefore giving you more dust. An environment with more intakes than exhausts will allow YOU to choose where air enters and let you set up filters by all intakes.
+1 and rep
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post #18 of 18
Thread Starter 
Thank you so much windfire for your wonderful suggestion, which turned out to be the best one for my configuration.
Also thank you B!0HaZard for your clarification about the pressures, it was indeed very helpful.
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