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120mm vs. 92mm for CPU Cooling

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May 18, 2003 10:13:07 AM

Okay, let's start with my original hairbrained theory. It's based around the general male "bigger is better" way of thinking. Take a new Thermaltake Volcano 11 Cooler, add a 120mm x 80mm fan adaptor, and mount a Thermaltake 120mm x 25mm case fan. Less power consumption, and 20 less decibles at full speed. It was a cool idea, at least.
What I gained was a much quieter system, and an extra 10 degrees Centigrade under load than before. So, after doing a lot more extensive research, it appears that the static <i>pressure</i> (mmH2O) is just as or more important than the CFMs.
So here's the question. What is the best (air) setup for balancing cooling power vs. sound? I'd like to stay at or under 40 dBs, although I have speed controllers, so I can get a high output (Delta?) fan and throttle it back. I have both a Volcano7+ (70mm adaptable to 92mm) and a Volcano11 (80mm adaptable to 120mm) heatsink to work with. All other info can be found through the links below.
Thanks in advance.

<A HREF="http://rebturtle.com" target="_new">rebturtle</A>
<A HREF="http://www.geocities.com/rebturtle/TurtleTech.html" target="_new">My System</A>

More about : 120mm 92mm cpu cooling

May 19, 2003 5:20:24 AM

I was using a Swiftech MCX462, with a Delta fan, really sounded like a jet on the runway, waiting for takeoff clearance, now I'm running a Vantec Aeroflow, temp wise I'm 5c hotter with the Vantec @ 43c than the Swiftech @ 38c, under load, but its so much quieter, and 43c is a very good temp, that even overclocking these temps are fine and way in the safe zone, so I've found my solution.

<b><font color=purple>Details, Details, Its all in the Details, If you need help, Don't leave out the Details.</font color=purple></b>
May 19, 2003 5:44:17 AM

Interesting. I'm really not ready do go that far yet (peltier cooling). I imagine that my addiction to performance will eventually take me to watercooling or, pending the Lottery, Vapochill. :wink: I did some more research today and found a Soyo 120mm fan that moves 190CFMs!! Unfortunately it's an industrial application and I may have to break out the soldering iron to hook up the appropriate leads - after having it shipped from <i>England</i>, of course (no offence to any Brits out there, it's just the only place I could find it on the web). Here's the <A HREF="http://www.theoverclockingstore.co.uk/productinfo.php?c..." target="_new">link</A>
I also found some other candidates here:
<A HREF="http://2cooltek.safeshopper.com/28/43.htm?914" target="_new">YS Tech</A>
<A HREF="http://www.nexfan.com/su120x120x38.html" target="_new">Sunon</A>
<A HREF="http://www.directron.com/fba12g12h1a.html" target="_new">Panasonic</A>

<A HREF="http://rebturtle.com" target="_new">rebturtle</A>
<A HREF="http://www.geocities.com/rebturtle/TurtleTech.html" target="_new">My System</A>
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May 19, 2003 11:47:40 AM

Peltiers? The normal Swiftech MCX462 doesn't use peltiers... but there is a peltier edition for the people who are (stupid enough) wanting to try aircooling and peltiers. IMO high end peltiers used for CPUs can only be used in combination with watercooling.

Anyway I have a Delta 120HP 120mm 36W 4000 rpm fan that should move 197CFM or air... but I slowed it down because the noice is unbearable.

My CPU fan spins so fast that it creates a wormhole :eek: 
May 19, 2003 4:07:40 PM

I hope that you don't have that mounted on a HS.

Or is that one of your case fans?




<A HREF="http://www.millionmanlan.com/MMLDefault.asp" target="_new">Gaming the THG way... THG sponsors the MML2: June 25-29, 2003 in Louisville Kentucky... Be there!</A>
May 19, 2003 8:52:45 PM

sounds really cool.
mind if I ask where did you get those fan adaptors?

Trix are <font color=red>NOT JUST</font color=red> for kids
May 20, 2003 4:27:48 PM

No that is actually my radiator fan... on HSF it would be insane and I don't have 120mm holes in my case (biggest is 92mm in the bottom plate).

My CPU fan spins so fast that it creates a wormhole :eek: 
May 20, 2003 4:29:25 PM

Cool, but if you buy it remember that it produces and insane amount of sound and draws a lot of power so it needs a high wattage rheostat to slow it down (or a couple of 5W resistors).

My CPU fan spins so fast that it creates a wormhole :eek: 
May 20, 2003 5:49:43 PM

That thing is what... 370g-390g? Talk about one heavy HSF combo. That would be close to one kilo.

hehe




<A HREF="http://www.millionmanlan.com/MMLDefault.asp" target="_new">Gaming the THG way... THG sponsors the MML2: June 25-29, 2003 in Louisville Kentucky... Be there!</A>
May 21, 2003 6:46:28 PM

Well if you really want to know the exact weight I can remove it from my radiator (I have to clean it anyways) and weigh it.

My CPU fan spins so fast that it creates a wormhole :eek: 
May 21, 2003 7:41:50 PM

No that is alright.

I was just thinking of how nuts that would be to do.





<A HREF="http://www.millionmanlan.com/MMLDefault.asp" target="_new">Gaming the THG way... THG sponsors the MML2: June 25-29, 2003 in Louisville Kentucky... Be there!</A>
May 23, 2003 1:50:21 PM

I think I'm crazy enough to do it... you do know what 'kind of casemods I have done, do you?

My CPU fan spins so fast that it creates a wormhole :eek: 
!