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push, pull, or push-pull?
- Thread starter Sheazle
- Start date
Do not push only. When air exits the fan housing, it's quite turbulent (air eddies, pressures, etc), so it won't flow through a radiator very well. Pull is best to keep noise down, and push+pull is a bit better for some more noise. Two fans on a longer heater core is way better than push+pull on a shorter heater core.
In your case, get 2 quiet fans and hook them up in push+pull. Panaflo L1A's or a couple Papst fans, as they are thick (more pressure) flow plenty, and are very quiet.
In your case, get 2 quiet fans and hook them up in push+pull. Panaflo L1A's or a couple Papst fans, as they are thick (more pressure) flow plenty, and are very quiet.
What about a 86 chevette heater core? From what i've read they are supposed to be a decent single 120 mm fan rad.
what about a 77' boneville heater core with 4 m1a's on a fan controller in push pull. think thay would be loud and still cool good, when turned down to lets say about 7v?
sorry to hijack your thread but it was kinda the same topic
what about a 77' boneville heater core with 4 m1a's on a fan controller in push pull. think thay would be loud and still cool good, when turned down to lets say about 7v?
sorry to hijack your thread but it was kinda the same topic
The Chevette and Bonneville heater cores are good. I think the Dtek heater core is a Chevette core, but I could be wrong. Check the classifieds here for prepped Bonneville cores by 2Fresh. I couldn't be happier with my 2Fresh rad.
Sheazle, what are you planning to use? CPU only? GPU as well? Don't bother with northbridge. A single 120mm rad works well in a single block loop, and is fine with 2 blocks to a point. Sean Richards from CritiCool Solutions uses 2 Silverprop blocks in a loop with an Eheim 1250 pump, Dtek rad, and 2 fans in push/pull (I'm guessing Papst fans). Even when I was standing a few feet away from his case, I couldn't hear ANYTHING. He laughed at me when my jaw dropped, as I looked at his screen saver and realized that his computer was actually ON!
As for 4 M1A's on a Bonneville rad, that's just excess. Ever heard of a point of diminishing returns? Yeah, that's it right there. It'll cool well even at 7V, but for a few degrees more you'd have a MUCH quieter system. It all comes down to how much noise you consider tolerable, and what you want from your loop.
Sheazle, what are you planning to use? CPU only? GPU as well? Don't bother with northbridge. A single 120mm rad works well in a single block loop, and is fine with 2 blocks to a point. Sean Richards from CritiCool Solutions uses 2 Silverprop blocks in a loop with an Eheim 1250 pump, Dtek rad, and 2 fans in push/pull (I'm guessing Papst fans). Even when I was standing a few feet away from his case, I couldn't hear ANYTHING. He laughed at me when my jaw dropped, as I looked at his screen saver and realized that his computer was actually ON!
As for 4 M1A's on a Bonneville rad, that's just excess. Ever heard of a point of diminishing returns? Yeah, that's it right there. It'll cool well even at 7V, but for a few degrees more you'd have a MUCH quieter system. It all comes down to how much noise you consider tolerable, and what you want from your loop.
im still kinda researching. all i have bought is the rad so far. i will be buying a tdx block and then later on once i get my new setup all done i will want to have 2 6800 gt's on with it as well.
You think 2 of the fans pulling through the rad would probably be pretty good eh?
You think 2 of the fans pulling through the rad would probably be pretty good eh?
whether or not 4 fans is going to help you any will depend on a lot of different factors, such as the heatload generated by you system (if the rad is able to knock out most of the heat with 2 fans, then 2 more will only get you a limited gain), the types of fans you are talking about and the depth of the radiator. Joe C just ran a test on this with black ice rads and found that dual fans (push-pull) would produce about 50% more air and around a 20% increase in the rad's ability to dump heat. what those figures would lead to as far as an actual drop in coolant temps is hard to say - most who slap fans on both sides of dual 120 heatercores report a coolant temp drop of maybe 1 C or so for the added noise.
link to the above mentioned test of course:
http://www.overclockers.com/articles1155/
link to the above mentioned test of course:
http://www.overclockers.com/articles1155/
well, right now i have a grand total of 11 case fans (2x80mm in psu, 7x80mm on the case, cpu, and gpu), without a fan controller, so i'm pushing about 47 decibels...which is alot...when i turn it on it sounds like a jet engine spinning up...i'm suprised it hasn't tried to take off and fly around the room...i have a feeling that upgrading to a lian li case from my raidmax will help out, as well as eliminating the cpu fan and gpu fan on my 9800pro, and all of the 80mm fans aren't necessary, i just kind of went on a fan craze when i was putting this thing together last year...
oh well...i'm planning on running a cpu block and a gpu block....and all the motherboards i've been looking at (i'm upgrading nearly everything) have a fan on the northbridge, so i was going to do a northbridge block too....but you say it's unnecessary? why is that?
oh well...i'm planning on running a cpu block and a gpu block....and all the motherboards i've been looking at (i'm upgrading nearly everything) have a fan on the northbridge, so i was going to do a northbridge block too....but you say it's unnecessary? why is that?