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How many rads?

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September 28, 2011 1:04:48 AM

Hi,
I have 4 6970's that usually run at full load 24/7 and an overclocked 2600k @5 ghz and i dont know how many radiators I should have to sufficiently cool this beast.
I have dual mcp655's in a single loop and i have enough room in my case to mount 3 3X120mm rads. is this enough or should i find a place to mount one more?

Thanks

Also, any ideas on a good water cooling setup if i have roughly $1800 to burn?

More about : rads

a b K Overclocking
September 28, 2011 1:41:40 AM

3 3x120mm rads would likely suffice if you used TC PA 120.3's or XSPC RX360's.
-It would be best if you did this w/ push pull fans @ 2000RPM on them but that is about 18 fans and could be just a tad noisy. If you are looking to spend 1800$ though, that many fans may be a good way to get started!

Dual 655's will definitely push through that setup.

I would get rubix or some other knowledgeable source to comment on the best way to run the loop through 4 6970's as I would assume that is a heck lot of resistance to just run all 4 in serial.
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September 28, 2011 1:44:36 AM

I would say one 3x120mm RAD is enough for your system + 2 videocards. If you are going with 4 videocards, 2 RADs would be a good setup, feel free to make that 3, it it makes you feel more safe.

You will want great and silent fans to mount on the rads, check www.silenx.com

Check koolance for a powerfull and silent pump
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September 28, 2011 1:53:18 AM

Thanks for the responses guys.
I was thinking of running all EK delrin/acetyl blocks with a quad FC parallel bridge.
I already have 9 enermax magma fans which pull a good amount of air and are still whisper silent.
As far as fittings go, I heard that bitspower is the highest quality and has the biggest selection.
BTW I am doing this all in a danger den double wide 21
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Best solution

a c 331 K Overclocking
September 28, 2011 2:09:37 AM

Quote:
I would say one 3x120mm RAD is enough for your system + 2 videocards. If you are going with 4 videocards, 2 RADs would be a good setup, feel free to make that 3, it it makes you feel more safe.


This is a very incorrect statement. Do you realize the total TDP at load these cards would produce in comparison with the maximum amount of heat-watts able to be dissipated by each 3x120 rad available, by model and fan speed?

At first glance, a 6970 has a TDP of close to 300watts...so a total of 1200 watts potentially at load....a RX360 can potentially dissipate ~550-575 watts with 3, 1800rpm fans (best case scenario). The OP is going to need at least 2 of these (or similar performing rads) and an additional radiator...this doesn't even take into consideration if he is looking to watercool the CPU as well...it would take at minimum three RX360 rads and maybe more...

Koolance doesn't really make pumps, they re-brand almost all of their pumps from Laing- which are also some of the very same models used by Swiftech and other vendors.
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a b K Overclocking
September 28, 2011 2:34:03 AM

all depends on what noise level your happy with.

i u want it quite as a mouse, get more rads and lower speed fans.

im guessing this is for some type of bitcoin machine right? (what else would run 4x6970's @ full load 24/7)

but yes 3x (tripple fan RADS) would be nice mix of cooling vs noise.
you could go more rad space and drop to quiter fans if ur worried about noise.

Computers are made to be used not heard. :) 

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September 28, 2011 2:37:29 AM

Right you are. This is going to be a bitcoin miner when im not home and gaming monster when I am. What would you recommend as the best radiator company out there?
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a b K Overclocking
September 28, 2011 2:58:54 AM

you cant really go wrong i dont think.

i have good experiences with XSPC gear.
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September 28, 2011 3:09:06 AM

Sorry for my previows statement, I was used to a 2x 120mm radiator cooling both CPU and videocard, I didnt realized how insanely hot the videocards were.
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a c 331 K Overclocking
September 28, 2011 1:35:29 PM

Even a single 2x120 isn't enough to cool a CPU+GPU, unless both are from the year 1998.
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September 28, 2011 3:08:54 PM

Oh for my 1998 PC I simply wave at my CPU ocasionaly, no fans needed.
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October 5, 2011 1:32:09 AM

Best answer selected by gooberm.
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