40 replies to this topic

[Aznpersuasion89]

More directed towards tower coolers. I imagine there would be no difference since your still getting the same flow provided your fan blades are designed correctly. Anyone here do a pull method?

[Vulpesveritas]

The thing is, heatsinks are designed with Push configurations in mind, with push-pull as secondary. Pull is not generally designed for, and would actually not cool it as well as you would draw air more in from the sides of a heatsink more than pull air over the fins of the heatsink.

[Aznpersuasion89]

Really? Even though the tower sinks are symmetric? Weird

[Skrapheap]

I'm going to have to agree with Vulpesveritas on thi, as my personal experience tells me the same. However I have found that some cooling solutions do not benefit from push/pull as much as one would think, though at the time I do not want to name any names *Cough* H50 *Cough*

[Vulpesveritas]

Aznpersuasion89, on 25 June 2012 - 08:26 PM, said:

Really? Even though the tower sinks are symmetric? Weird

the reason is directed airflow by the fans, fans are meant to take in as much air as they can, and then expel it. Fans with higher static pressure make a more focused 'beam' of air, allowing for the airflow to travel over the fins in more of a straight line. Many computer fans are made with static pressure in mind, and hence the heatsink will cool more from one of those fans in a push configuration.

[Aznpersuasion89]

Dude....I freakin love it when you post. Opinion, advice and data to back it up.

[sumdumfu]

if you can, do both. there are heatsinks out there that have two fans - one push one pull.

[Aznpersuasion89]

Ya I know of dual set ii. But was wondering on just one. I'm sure certain boards the ram is close to the CPU and a fan doesn't fit on that side. You can put it on the other side but then it blowing into the case and not out the exhuast port.

[Vulpesveritas]

Aznpersuasion89, on 26 June 2012 - 05:39 AM, said:

Ya I know of dual set ii. But was wondering on just one. I'm sure certain boards the ram is close to the CPU and a fan doesn't fit on that side. You can put it on the other side but then it blowing into the case and not out the exhuast port.

This is why heatsinks are made with your RAM in mind, and so they won't interfere with your ram; unless of course you make the foolish decision to get RAM with large heatspreaders (which modern DDR3 does not need unless you are overclocking it exceptionally high) which is generally done on a vanity point. Standard aka "Low" profile RAM will have no problem fitting under any well designed heatsink.

[Aznpersuasion89]

Ooooooh

[Catamount]

I've gotten differences usually no larger than a handful of degrees from a push-pull configuration, although it's still an edge. I slapped together such a setup on my Titan Fenrir and got about 4-5 degrees difference in load temps. If you're limited to one, then yes, pushing is better than pulling.

[silentD11]

Aznpersuasion89, on 25 June 2012 - 08:03 PM, said:

More directed towards tower coolers. I imagine there would be no difference since your still getting the same flow provided your fan blades are designed correctly. Anyone here do a pull method?

I always use water cooling but push VS pull often depends on where you're getting the air from and the type of fan. Several fans have dead zones in the center that are fairly large in push configuration. That's a whole lot of the radiator (or heatsink for air cooling) that's not getting any air over it. Push + pull should increase airflow, but keep dead zones in mind. Large (read fat or thick) radiators can perform much better if you're using low RPM fans with a deadzone in pull configuration, this also gives you a fair amount of silence.

There is no right or wrong answer here. It's completely dependant on where the air is coming from and it's temp, what heatsink or radiator you're using, and what fan you're using.

[sumdumfu]

Vulpesveritas, on 26 June 2012 - 07:02 AM, said:

This is why heatsinks are made with your RAM in mind, and so they won't interfere with your ram; unless of course you make the foolish decision to get RAM with large heatspreaders (which modern DDR3 does not need unless you are overclocking it exceptionally high) which is generally done on a vanity point. Standard aka "Low" profile RAM will have no problem fitting under any well designed heatsink.

I myself have such a setup. this is my cooler:
http://www.newegg.co...N82E16835181011

i had to install my dimms first, but the slot closest to my cpu is covered by this monster. had to forego ridiculous mem heatspreader, but haven't needed it.

[Odins Fist]

Push... Not Pull on a single fan Stock CPU cooler.. "PERIOD". But I water cool on my main rig, also have a Dual Fan RAM cooler anyway, so this is a non issue for me. I wouldn't recommend turning that fan around to try a pull config, it doesn't cool as well, so there is no need to experiment.
.
If you're going push + pull, you need something like this, as a matter of fact I run one of these with after market higher CFM fans on it.
.
http://www.newegg.co...N82E16835103057
.
It dumps exhaust right into the back fan (exhaust) on the case... That's on my secondary LAN case, not my main water cooled rig.
.
Also, all off my RAM have taller than stock heatsinks, they are overclocked from 1600 to 1808 Mhz, and the Heatsinks do nothing but "HELP", I have never seen them be a problem, unless your aftermarket CPU cooler gets in the way of them, at that point you probably should have read up on your Mobo to see if other people had issues with CPU coolers pushing up against DIMMs.
It's always best to see what other people have done, and what their "experience" was... It beats guessing every time.

Edited by Odins Fist, 26 June 2012 - 04:30 PM.

[Aznpersuasion89]

Gotcha, I plan on over clocking so maybe ill find a push + pull, unless someone can vouch for the silenx efz-92ha3 cooler.

[silentD11]

I'd go with thermalright for CPU coolers or noctuna if I was going to go air

http://www.performan...oducts_id=29739

http://www.performan...oducts_id=33734

http://www.performan...oducts_id=32726

Though honestly EK supreme HF or swiftech CPU block, liang DDC pump (pick who you want to get it from), dual 120mm radiator is very nice for CPU cooling!

Random old computers...







I really don't like air cooling, the temps aren't all that.

[sirjackinthebox]

I am currently using an Antec Lanboy case, probably the best full priced investment iv'e made on this monster PC, mounting up to 12 120mm Antec 800rpm fans using a positive pressure air flow meaning all fans pull air into the case venting out of the top and bottom of the case, so far using a digital touch pad fan control panel my temps have never been higher than 28 degrees C in any one zone covered by the various censors during hours of game play in a variety of high end games like Crysis, skyrim, and Mass Effect3 on max video graphics lvls....

[Aznpersuasion89]

The case im looking at has provisions for 6 fans and I plan on using them all.

[Vulpesveritas]

Aznpersuasion89, on 26 June 2012 - 07:48 PM, said:

The case im looking at has provisions for 6 fans and I plan on using them all.

Depending on what case you get you may be better off with a 120mm SilentX fan (the larger version of the one I recommended,)
http://www.newegg.co...N82E16835226051
This at $50: http://www.newegg.co...N82E16835146012
This at $75: http://www.newegg.co...N82E16835103176
or this at $100 http://www.newegg.co...N82E16835709001
... Though if I may ask, what case are you looking at?
I really need to make a cooling recommendations guide. lol

[silentD11]

Air cooling is easy, thermalright and noctuna dominate most benchmarks from OC groups. Though, air cooling is rather low end anyways. Liquid cooling is where it's at, and extreme systems is the only place with every block tested with every pump, different rads, and temps vs delta temps along with flow and pressure drops. You'd have to crib all their information.