Sign in with
Sign up | Sign in
Your question

Need help w/ heatsink/fan decision: want the best!

Last response: in Overclocking
Share
December 3, 2002 12:54:18 AM

I am upgrading to a p4 2.4B, and i want a heatsink/fan cpu cooler that will let me overclock to 3.0 ghz. Water cooling is out of the question, and im going for the Swiftech mcx 4000 heatsink. I need help with the fan though. It's between the THermaltake Smartfan 2 that pushes 75cfm and a TMD fan. Which one is better? And does anyone have any suggestions?

More about : heatsink fan decision

December 3, 2002 1:59:25 PM

I would go for the Thermaltake.

<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>
December 4, 2002 9:12:50 PM

smartfan would be good if you want changing fan levels

otherwise vantec tornado (84cfm) is another good choice

or the more powerful delta (the one that is 1 step higher than the 68cfm model)
Related resources
December 5, 2002 2:15:25 AM

The thermaltake. Its probably more useful as you can tune to to whatever speed/noise level you desire, PLUS it has a temp probe so it can very depending on the heatsink temp.

<A HREF="http://www.ihatetelstra.com" target="_new">http://www.ihatetelstra.com&lt;/A>
<A HREF="http://www.telstraexposed.com" target="_new">http://www.telstraexposed.com&lt;/A>
<A HREF="http://www.antitelstra.com" target="_new">http://www.antitelstra.com&lt;/A>
<A HREF="http://www.whirlpool.net.au" target="_new">http://www.whirlpool.net.au&lt;/A>
December 6, 2002 2:36:27 AM

P.S. I actually have a thermaltake smart fan and have compared it to a delta 4900rpm screamer...
The thermaltake DOES NOT put out 75cfm of air. Either that or the Delta puts out WAAAAAY more than 68.5cfm.


<A HREF="http://www.ihatetelstra.com" target="_new">http://www.ihatetelstra.com&lt;/A>
<A HREF="http://www.telstraexposed.com" target="_new">http://www.telstraexposed.com&lt;/A>
<A HREF="http://www.antitelstra.com" target="_new">http://www.antitelstra.com&lt;/A>
<A HREF="http://www.whirlpool.net.au" target="_new">http://www.whirlpool.net.au&lt;/A>
December 23, 2002 12:28:15 PM

And this is what you call advise? Be some more specific... put some arguments in.

My PC eats so much money that I'm in 'desperate' need of it to buy PC3500 RAM, help Svol with his OC project!
--- PM me for information.
December 23, 2002 2:53:56 PM

I've got the new Vantec Aeroflow with the TMD fan on it, and I'm pretty stisfied with it (idle 33C, load 39C). Its probably the quietest fan I've got, and compared to the smartfan the only thing I'd be questioning is how much cfm you want, because the TMD fan delivers ~34cfm - not much for overclocking.. I mean, I haven't tried the SmartFan II but I've tried the SmartFan I and I'm not satisfied with its performance at all.. If you're looking for the best, go with a Vantec Tornado, puts out about 84cfm (80mm) and about 104cfm (92mm). Then add on a Thermalright SLK 800, and you'll be fine... Otherwise, Swiftech is now offering some promising looking pelletier/air cooling HSF combos, but those still need additional modding before I would use it.
December 24, 2002 9:46:56 AM

NOOOOOOOOOOOOOOOOO... not more of those stupid peltier aircooling combo's! They're just an enormous waste of money.

My PC eats so much money that I'm in 'desperate' need of it to buy PC3500 RAM, help Svol with his OC project!
--- PM me for information.
December 24, 2002 5:34:12 PM

Explain yourself... I've never tried one, but from all the info I've seen/read, I thought that (ohk, not all of them) they look decent (yet obviously still unusable) to start with.

Staggering out of the shower this morning, I hear the hair-dryer. "Whose awake?" I think... Till I realize its my computer - talk about a windtunnel
December 25, 2002 12:25:05 AM

just look through the threads on them from the past 2 weeks here, you'll get your answers
(most of the threads are titled "Thermaltake Subzero G" or whatever they called it)

--------------

<A HREF="http://forumz.tomshardware.com/modules.php?name=Forums&..." target="_new">mubla otohp eht ni ecaf ruoy teg</A>
December 25, 2002 8:22:37 AM

You're lucky that I'm not in a bad mood and don't mind explaining this a third time.

Now lets say you have a CPU emmiting 75W of heat... then the peltier will move the heat to the hot side and add another 75W. So you will get 150W heat to cope with on the heat side... which will create an enormous amount of heat in your case that needs to get out of there.
I couldn't find the heatexchange coefficient for the MCX462 but I guess it is somewhere around 0.28C/W (that is the coefficient for the Alpha PAL8045). So whit a 150W heat output you will get a HSF temp of 64C with an 22C ambient.
Now the deltaT (temp difference between the hot and cold side) of the peltier is 70C at most (that means with no heat input at the cold side)... with 75W heat input it will be around the 30C (not for sure as I don't know the peltier specs so it could be lower). So you will get a CPU temp of 34C.
Sounds good but now lets calculate what you would get without peltier: 75*0.28+22=43C.
So it all that power sucking (75W), the condensation that occours at idle CPU, the enormous heat inside your case and the enormous amount of noise created by all fans really worth it?
IMO not: watercooling is the only good option for peltiers.

My PC eats so much money that I'm in 'desperate' need of it to buy PC3500 RAM, help Svol with his OC project!
--- PM me for information.
!