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Heat Dissipation Question for Liquid Cooling Setup - Page 2

post #11 of 15
You are right, CFM (airflow) is more important than the RPM. Generally higher RPM = higher CFM. The fans used at the RPM levels in his reviews are:

Code:
    * Yate Loon D12SL-12 120mm x 25mm – 47CFM/1350RPM/28dB
          o Silent Speed Fans – Undervolted to 600 RPM
          o Slow Speed Fans – Undervolted to 1000 RPM
    * Yate Loon D12SH-12 120mm x 25mm – 88CFM/2200RPM/40dB
          o Slow-Med Speed Fans – Undervolted to 1400 RPM
          o Medium Speed Fans – Undervolted to 1800 RPM
    * Scythe Ultra Kaze DFS123812H 120mm x 38mm – 133CFM/3000RPM/46dB
          o High Speed Fans – Undervolted to 2300 RPM
          o Ultra High Speed Fans – Volt Adjusted to 2800 RPM
Your 1500 rpm fan seems to move about the same amount of air as the 2000rpm one used in his review, and should serve you well.

A delta rating is the difference between the water temps and the room temps. A 15C delta is probably fine, but the lower delta you can achieve then the less likely it will be that the temps limit your overclocks.
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post #12 of 15
I originally started with a 360 rad and 120 rad for 4.2Ghz 930 and stock gigabyte UD9 motherboard block which was not enough. Water temps were getting to 40c.

I now have an i7 950 @ 4.6Ghz with 4x 5x70 GPUs, motherboard and ram water cooling. Now with 4 x 360 BI GTX Rads and 1800 RPM fans in push pull my water delta is about 6-7c under full GPU load which generates about 900W just for the GPU's alone. Thats with 2 D5s in series. So another issue you are likely to have is not enough flow rate for the CPU.

I doubt you have anywhere near enough cooling capacity for your config to run under load for any reasonable length of time.
Edited by Phatboy69 - 3/17/11 at 6:27pm
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post #13 of 15
Thread Starter 
Thanks again for the great information.

What I am now leaning toward doing (with all the information that everyone has giving) is running 2 video cards instead of 3. The system would be set up as this...

-Parts To Cool-
CPU: Intel I7 970 @ 4.0GHz
Video Card #1: Nvidia GeForce GTX 580 (Mild Overclock)
Video Card #2: Nvidia GeForce GTX 580 (Mild Overclock)

-Cooling Components-
Tubing: 3/8 ID Tygon
Pump: Danger Den DD-CPX Pro @ 237 Gph
Radiator #1: Black Ice GT Stealth 360 Radiator
Radiator #2: Black Ice GT Stealth 120 Radiator
Radiator Fans: Aerocool Shark Red Edition 120mm x 25mm @ 82.6CFM
CPU Block: EK Supreme HF Universal CPU Liquid Cooling Block - Rev 2
Video Card Block #1: EK GeForce 570 / 580 GTX VGA Liquid Cooling Block - Acetal (EK-FC580 GTX Acetal)
Video Card Block #1: EK GeForce 570 / 580 GTX VGA Liquid Cooling Block - Acetal (EK-FC580 GTX Acetal)

So with this possible setup, what do you think temperatures would be (Idle and Max Gaming Load)? Let’s base it off of 75 degree Fahrenheit ambient temperature.

Most of the above listed cooling components I have purchased and installed already. I am "willing" to add another 360 radiator to the back outside of the case "if" needed, but would like to avoid. I am also running out of room inside the case to add another internal radiator. If adding another radiator to the back is a must, then my question would be, do you feel my pump could handle it? If no, could I connect another pump of the same brand/type in series to the existing pump, or is there a single pump that could do it all?

Thanks in advance for all the great advice.
Edited by JutMiller - 3/18/11 at 9:06am
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post #14 of 15
Thread Starter 
-Bumping-

I plan on purchasing the last of my components on Monday the 18th. Any feedback would be greatly appreciated.

Thanks.
Edited by JutMiller - 3/18/11 at 3:16pm
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post #15 of 15
Hi JutMiller,

I'd say go with 1/2 tubing over 3/8 unless you have your heart fixed on it. I think it looks much better/substatial and it actually cools better. Take a look at my pics and temps that I posted. I only have 1 360GTX rad cooling 480s in SLI and an x6 overclocked to 4.0ghz. My max temp on the processor is 25c and the SLI is 39c overclocked to over 900mhz. Go towards the bottom to see the final pics. The ones at the top were a temporary setup. I just finished my water cooling 2 days ago:

http://www.overclock.net/computer-ca...rs-club-9.html
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