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Two 4x140 Rads, Three GTX 580 Video Cards, One Loop Or Two?

JB3

Junior Member

Two 4x140 Rads, Three GTX 580 Video Cards, One Loop Or Two?

jeudi 24 novembre 2011, 19:40

I am building a new computer. So far for cooling I have two Black Ice SR-1 560 rads, 8 Noiseblocker PK-2 140mm fans, Aquerao 5XT, 3 PowerAdjust 2 Ultras, and 2 Aquastream Ultra pumps. I have an Asus Rampage IV Extreme X79 motherboard and will use an i7-3930K cpu. Original plan was two loops, one 560 rad, one Aquastream Ultra pump, one res for each loop. One loop to cool two EVGA 580 Classified Hydro Copper 3GB video cards and one loop to cool cpu, ram, and motherboard waterblock. Now I decided to go with 3 of these video cards. It seems my two loops are pretty lopsided as far as heat load.
Questions:
1. Should I continue with two loops as planned even though one loop has lots of heat input and the other does not or run one loop first to cpu then motherboard waterblock, then video cards so both 560 rads can cool the video cards?
2. Does one AquaStream Ultra pump have enough pressure and flow for one loop with two 560 rads, cpu block, motherboard block, and 3 video cards with waterblocks that are considred fairly restrictive?
3. Any other suggestions?

Phatboy69

Full Member

vendredi 25 novembre 2011, 02:11

Given your large rad size, 1 rad is wasted on the CPU loop. I would run both pumps in series and a single loop. The CPU temp might rise a few degrees but 3 580s might be too much for a single 560 rad.

I have 3 x GTX360 rads for my 4-way SLI GTX580 GPUs and they run at 50c max under extended load with water temp about 35c. You might find your water temp would nudge 40c with only one rad which i think is a bit high.
I am Intel of Borg. Resistance is futile. You will be assimilated.

i7 3930K @5Ghz - X79 ASUS Rampage IV Extreme - 4x SLI GTX580 - 16GB DDR3-2000 - 4x GTX 360 rads 24x CM fans - Aquaero 5 XT +6 PA2 Ultras - 2 x Enermax 1500W PSU - MM Extended Ascension Case - 2 x 452x2 Res and 4 x D5 - 3 x 24" Acer H243H LCD

JB3

Junior Member

samedi 26 novembre 2011, 04:19

I think you're right about the single loop working better for me. I've figured out how I want to do the loop with two AquaStream Ultra XT pumps in series and have ordered fittings and tubing. From what I've seen online these pumps do pretty well in restrictive loops and since I am going through 3 EVGA Classified 580 HC cards and two SR-1 560 radiators I think my loop will be fairly restrictive. I will measure water temps at the pumps, after the first radiator, after the second radiator, after the CPU, and after the video cards. Looking forward to seeing what my temps will be.

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