Watercooling noob needs help, will my loop work?


Im planning on building a new rig in January which will have a watercooling loop - Cooling the Graphics card (HD5850) and CPU (Core i7 920 @ 4ghz+)

My first question is regarding parts, basically im not sure if the parts ive choosen will work together or if i've missed something out.

Watercooling parts:
Pump http://www.scan.co.uk/Products/Alphacool-Laing-DDC-Pump-12V-Pro-Electronically-Commuted-Ball-motor-Pump
Radiator http://www.scan.co.uk/Products/XSPC-RX360-Black-High-Performance-Radiator
Reservoir http://www.scan.co.uk/Products/XSPC-DDCRES-200ml-Laing-DDC-Top-Reservoir-inc-Blue-LED-(Pump-NOT-included)
Tubing http://www.scan.co.uk/Products/25m-TFC-Blue-UV-Reactive-Tube-3-8-ID-1-2-OD
CPU Block http://www.scan.co.uk/Products/Swiftech-Apogee-GTZ-CPU-Block-LGA-775-3-8-and-1-2-Barbs-Inc
GPU Block http://www.scan.co.uk/Products/EK-FC5850-Acrylic-and-Nickel
Anti Kink Coils http://www.scan.co.uk/Products/1m-PrimoChill-Gloss-Blue-Anti-Kink-Coils-1-2-Compatible-with-3-8-OD-Hose-and-1-2
Cooling Fluid http://www.scan.co.uk/Products/Silverstone-LCP02A-500cc-thermal-fluid-for-any-liquid-cooling-devices
Hose Cutter http://www.scan.co.uk/Products/Alphacool-Hose-cutter-Plastic-(Cuts-Pastic-Tube-lengths-to-perfection)
Fans x3 http://www.scan.co.uk/Products/120mm-Enermax-UCMA12-Magma-TWISTER-Fan-(MBT)-Batwing-Blades-15k-RPM-inc-Rubber-A-V-Plugs

Right have I missed anything?? And is it all compatible??

Also can anyone suggest a configuration? I was thinking Radiator>Reservoir>Pump>CPU Block>GPU Block>Radiator But really i have no idea if thats good or not.

I'd really appreciate some help :pt1cable:
12 answers Last reply
More about watercooling noob help loop work
  1. Will be using this CPU block instead as its 1366 compatible


  2. 1. I highly recommend a 2 loops. One for GPU the other for CPU. The i7 itself can put out about 300W when OCed. If budget is a problem, only cool CPU for now.

    2. Get a universal GPU block like the MCW 60-R. This way you'll be able to keep using the block down the road. If you go this route, make sure you get the MOSFET & VRAM heatsinks.

    3. Get Tygon or Primo Flex LRT tubing. They are less prone to kinking.

    4. DO NOT get Pre Mix coolant. Get some PT Nuke + distilled water. Or Kill Coils + Distiled water. You DON'T want this to happen: http://www.xtremesystems.org/forums/showthread.php?t=226632
    when using Pre Mix.

    5. Make sure you get the barbs for the rad.
  3. Cheers shadow, valued input :)

    2 seperate loops would set me back £400+ haha :P, I don't have that kind of money for cooling alone.
    I only want 4ghz with HT on with my Core i7 920 D0 and my Lapped TRUE just isn't up to it, so I thought I'd go for watercooling, also my last HD5850's VRM's were reaching 120C+ with a Thermalright HR-03 GT attached so I thought it made sense to put it under water.
    Its just to exspensive for me, ah well :(
  4. Yeah man. WCing is expensive. Btw, for your GPU, you DO have the MOSFET/VRAM heatsinks installed right? Also, what ere your temps at stock for the GPU?
  5. Hey
    Yeah I used the heatsinks that came with the aftermarket cooler. Unfortunality I can't remember the "before" temps, but im pretty sure the memory and GPU temps improved with the thermalright, but the VRM temps got worse.

    Heres a link to some photo's for your viewing pleasure


    I was thinking about adding a second radiator to the loop, so it would go:
    Reservoir>Pump>Triple Rad>CPU>Dual Rad>GPU>Reservoir......What do you think??
  6. Oh BTW I killed that 5850 (lol) and i have no idea how, and neither did Novatech and thats why they gave me a refund haha.

    But now im stuck with a Shi**y HD4890 from XFX which has no VRM sensors and cant overclock past 880 core FFS
  7. Quote:
    Reservoir>Pump>Triple Rad>CPU>Dual Rad>GPU>Reservoir......What do you think??

    Imo, I'd go with a 2nd loop.

    Loop 1 for CPU: res>pump>CPU block>320 rad>res

    Loop 2 for GPU: res>pump>GPU>320 rad>res.

    The i7 OCed runs VERY hot almost 300W of heat.

    If you have to add it to the same loop:

    res>pump>CPU>rad 1(320)>GPU>rad 2 (320)>res.
  8. Thanks shadow, To get my Core i7 stable at 4ghz with HT I need to give it 1.25Vcore
    and the QPI 1.35V, How much heat output do you think that would cause?

    I going to be using the Corsair Obsidian 800D case, I don't think it has space for 2 x 120.3 rads >.<
  9. Quote:
    To get my Core i7 stable at 4ghz with HT I need to give it 1.25Vcore
    and the QPI 1.35V, How much heat output do you think that would cause?

    Depends on your stock voltages.


    I going to be using the Corsair Obsidian 800D case, I don't think it has space for 2 x 120.3 rads >.<

    You could mount the rads externally.
  10. Wel for some reason Core temp cant show my 920's ViD, if its any use my motherboard set the Vcore at 1.20XXXV on AUTO at stock settings. Although it was stable at 1.10XXXV at stock 2.66ghz.

    In any case I'll buy all the stuff for a CPU loop and then in the future add another 120.3 rad and GPU block. It that doesnt work out to well then ill have little choice and have to add another pump, res ETC....

    Thanks for your tips about the tubing and coolant.

    Could you tell me the ratio of PT Nuke to Distilled water? is it 1:1?
  11. 2-5 drops of PT Nuke is plenty.
  12. Ok cool thanks :D
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