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Would my loop handle the addition of two GTX580's?

post #1 of 14
Thread Starter 
My loop is as follows:

MCP-655 w/ EK Top>MCR-320 w/ x3 Delta AFB1212VHE's & 120x25mm shrouds>EK Supreme HF AU>Swiftech Micro-Res. Keeps my i7 930 in the mid-low 40's in 24c ambient when under load at the following settings:



Would it keep cool temps if I were to add two 580's with Danger Den 580 full card copper blocks?
Edited by Supacasey - 4/21/11 at 12:23am
    
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post #2 of 14
Maybe. I would swap out the rad for an xspc rx series.
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post #3 of 14
Quote:
Originally Posted by Supacasey View Post
My loop is as follows:

MCP-655 w/ EK Top>MCR-320 w/ x3 Delta AFB1212VHE's & 120x25mm shrouds>EK Supreme HF AU>Swiftech Micro-Res. Keeps my i7 930 in the mid-low 40's in 24c ambient when under load at the following settings:



Would it keep cool temps if I were to add two 580's with Danger Den 580 full card copper blocks?
Even given your 3 fans are 4000rpm @ 51dbA Delta, an i7 930 at 4.2GHz at 1.31v has full load temp of low-mid 40's in 24C ambient is really phenomenal.

I am not too sure what your secret weapon is but given this super cooling loop, perhaps taking up two GTX580s is not a problem.
post #4 of 14
Thread Starter 
Quote:
Originally Posted by windfire View Post
Even given your 3 fans are 4000rpm @ 51dbA Delta, an i7 930 at 4.2GHz at 1.31v has full load temp of low-mid 40's in 24C ambient is really phenomenal.

I am not too sure what your secret weapon is but given this super cooling loop, perhaps taking up two GTX580s is not a problem.
Hehehe, well, a regularly cleaned rad and fans do wonders, not to mention I also lapped the 930

Where would I add the two 580's in the loop? Before the rad, after the pump, right?
Edited by Supacasey - 4/21/11 at 2:44pm
    
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post #5 of 14
Cooling should probably drop from fantastic to just adequate, with the high heat output of a pair of 580s. Would be more satisfying to add a 240 rad in the loop too.
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post #6 of 14
Thread Starter 
Would replacing the MCR320 with an XSPC RX360 make a significant difference?
    
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post #7 of 14
Quote:
Originally Posted by Supacasey View Post
Would replacing the MCR320 with an XSPC RX360 make a significant difference?
High Supa,

No, but adding them together will keep the system from getting too warm.

To keep the GPUs under about 60~65c @ max OC, AND, to keep my CPU below 55c, it took a PA120.3 and a cheapo EK140.1 radiator.

Good fans of course, running gentle typhoons in push on the radiator, and push/pull Noiseblockers for the EK140.1, when I upgraded to twin GTX 590s, I decided to bite the bullet and add one of those RX360 internally, and placed the bulky PA120.3 externally.

The flow is good enough with the DangerDens 580 blocks that you don't need 2 pumps to maintain a strong flow rate, with all of that installed (assuming the loop is similar.)

GPUs don't get above 42c, and the CPU gets warmer, I am assuming due to the more restrictive blocks by Swiftech on the GTX 590s. Something I am not entirely please about, but for just +5c on the CPU, I get great cool GPUs, so I suppose the trade off is worth it.

Setup I have is:
Res -> Pump -> PA120.3 -> EK140.1 -> CPU -> Mobo -> GPU 1 -> GPU 2 -> RX360 -> Res
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post #8 of 14
Thread Starter 
Christ on a cracker man, a single and two triples? Your setup must look like a water cooled Frankenstein. I'd be curious to see how you set that up since we have the same case, have any pictures?

And since I'm not cooling my mobo and considering my fans push much more air, I'd imagine a single RX360 would suffice. Maybe I could add a double fan rad externally on the back.
    
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post #9 of 14
I think the answer is no.

Look at Skinnee's report on that MCR 320 rad


You can see that 1 - 1.5 GPM you can dissipate around 750watts of heat with your fans cranked to 4000 RPM.

Your i7 930 had a TDP of 130w stock or probably closer to 170w - 180w with your OC. Those 580's are 244w each stock and if you OC them you will probably get to the 375w max of power.

What I am saying is that single MCR 320 will just have enough heat dissipation to cool 2 580's and your i7 all at stock with your fans running at 3000 RPM. You get a little more head room if you crank them full speed, but won't give you much wiggle room for OC'ing.

You really need more rad if you want to add 2x 580's in your loop or be very tolerant of 51 dba x 3
post #10 of 14
Quote:
Originally Posted by Supacasey View Post
Christ on a cracker man, a single and two triples? Your setup must look like a water cooled Frankenstein. I'd be curious to see how you set that up since we have the same case, have any pictures?

And since I'm not cooling my mobo and considering my fans push much more air, I'd imagine a single RX360 would suffice. Maybe I could add a double fan rad externally on the back.
Sure I will take some pictures for you tomorrow with day light.
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