Would love some feedback on my water-cooled system if you have a moment?

gneumatics

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Feb 18, 2014
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Hey there....
So I am planning on building my very first water cooled PC, have read quite a bit about it and am now at the exciting stage of actually buying the parts. However because this is my first time around the merry-go-round i am somewhat nervous that i may have missed something glaringly obvious to a WC veteran. I'd love to hear if there's something I'm just not getting, have missed or could do better if anybody has a few moments to look over my intended setup?

My intention is to build a cool and quiet machine with water-blocks on the 4 GPU's only. No CPU cooling is necessary. My current setup looks a little like this...

Motherboard - GA-990FXA-UD7
Power Supply - Toughpower XT Gold 1475W
CPU - AMD 8350
RAM - g-Skill sniper 16GB
Hard Disk - kingston 120gb ssd
Case - Fractal Design Define R2 XL
Video Cards - 4 x Sapphire R9 290x

... And my intended schematic for water cooling looks something like this ...


http://i57.tinypic.com/w2jf44.png



... Using the following components ...

Waterblocks
Aquacomputer Kryographics Radeon R9 290/290X Acrylic Glass, nickel plated version- $150 x 4
kryoconnect kit for kryographics, width 7 - $35
Arctic Silver 5 - $12

Radiators
Alphacool NexXxoS UT60 Full Copper 360mm - $115
Alphacool NexXxoS Monsta 240mm - $109

Pump/reservoir
XSPC Twin D5 Dual Bay Reservoir Pump Combo - $259

Fittings/Tubing
Bitspower G1/4 3/4in OD Compression Fitting CC5 V2 Black Sparkle- $12 x 10
PrimoChill PrimoFlex Advanced LRT Tubing Clear 1/2ID 3/4OD 3m - $35

Coolant
PrimoChill Antimicrobial Tube Coil Silver - $9
Distilled water

Fans
Corsair Air Series SP120 Performance Edition Case Fan - $19 x 5


So does this all look like its going to work? My insights are as follows, please correct me where ever I may be going wrong if you would like...

- I wont need a tiny delta T as I'm cooling GPU's only (and have GPU's meant to run at 90 degrees and above). 15-25 DT should be enough, even with overclocking.

- 4 x 290x GPU's run at about 300w each meaning four will give me an estimated 1000w of TDP (1200w - 15%ish). 1400RPM fans Should get me close to 25 DT (But if they don't an extra 240mm rad could be place behind the other 240mm rad.

- Two D5 pumps may be too much for 4 water-blocks and 2 rads but their speed can be turned down to create a quieter system.

- The 290x tri-x cards are simply reference cards with a great big cooler on them so the water-blocks designed for reference 290x's should still fit.

- Anti corrosion additives aren't' necessary for nickle plated water blocks but at microbial additives are. Hence I'll only be using a silver coil.

- The extreme power supply calculator recommends 1415w's of power supply with a %15 capacitor aging figure so I should be ok (especially considering the PSU is gold rated).

So I think thats about it! Once again, any help I could get here would be very much appreciated :)

... Cheers...
... Camm