Help with watercooling 2x7970+cpu

Grimgroth

Grimgroth

Grimgroth

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Joined
14 Mar 2012
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25
I recently built a new system and got a serious issue with heat/noisy fans. Im using two Gigabyte 7970 oc Windforce cards which are wonderful cards if you use 1... in crossfire the heat they generate is insane and the fans goes up to 100%. Ive decided to watercool them and the rest of the system (cpu, 2 gpus) and would like some tips of what to buy. Ive seen the V12 kits here but with the added 2 gpus in the loop i need more items like gpu blocks etc. What i wonder is do i need 2 radiators and what size should i go for? Do i need more then 1 pump?

I need to buy a new case though as i have the Antec P280 which would be to small to contain 2 bigger rads. Im thinking of getting Cooler Master Cosmos II or put a radiator external on my chassi (which i rather not do as it might look rubbish).

Parts:

Asus Sabertooth X79
Intel i7 3820
Nzxt Hale90, 1000w
Corsair Vengeance 16gb
Gigabyte 7970 OC, 3gb, Windforce x 2
 
You should only require 3x120mm worth of rad rough rule of thumb of 120mm per component.

Personally the case I think would be great is the Xigmatek Elysium

Although its big you can room for 200mm fans or 240mm rad in the bottom and 360/420 rad in the roof. should give you ample cooling options and doesn't cost the earth!
Plus OCUK do a techlabs quiet kit or watercooling V12 kit for it.

With this you would only need some extra fittings hose and maybe another rad + fans which possibly OCUK tech labs could sort out for you.
 
Last edited:
a V12 watercooling kit is required here.

you will need a 120/240mm radiator as well to help keep temperatures down. [buy one or two 1450 gentle typhoon fans to accompany this depending on the rad size you go for]

Personally i would go for the bitfenix shinobi XL as that case is superb and will fit both radiators in.

then all you will need is a pair of blocks.

ensure the EK 7970 blocks fit your cards by typing the card serials into this

you will need two fittings for every additional component you add to the loop.

the ocuk V12 kit uses these fittings if you want to keep them all matching
 
Thank you both for your help and advices! Will take a look on both cases that you two mentioned. Heard that they changed the cards so some blocks wont fit so thank you for that link =). My 1000w psu should suffice or should i aim for a more powerful one? I guess i need some special fittings between the 2 gpu cards?
 
I liked the Bitfenix Shinobi XL case and it cost a third of Cosmos II (more or less). I was even thinking of keeping my case as i could place a 120.2 in both the top and on the front on it.. but then i dont have any fans pumping in air into the chassi. Do i have to have that or does it work with using fans internally to cool down the motherboard/memory etc?
 
Abit confused what exactly i need for parts to a system with 2 gpu/crossfire setup. I need 2 blocks, fittings and then what? Ive googled and ek had quite a few items for this. Just wanna be 100% sure i order everything that i need.

Sorry for bothering you all with these noob questions.
 
Grimgroth said:
Abit confused what exactly i need for parts to a system with 2 gpu/crossfire setup. I need 2 blocks, fittings and then what? Ive googled and ek had quite a few items for this. Just wanna be 100% sure i order everything that i need.

Sorry for bothering you all with these noob questions.
Click to expand...

Buy the OcUK V12 kit
Then get two blocks (one for each card)
You then need 4 more fittings:
http://www.overclockers.co.uk/productlist.php?groupid=962&catid=1529&subid=1778
or
http://www.overclockers.co.uk/productlist.php?groupid=962&catid=1529&subid=1826

The ones that come with the kit:
http://www.overclockers.co.uk/showproduct.php?prodid=WC-297-OK&groupid=962&catid=1529&subcat=1826
 
Cleeecooo said:
Buy the OcUK V12 kit
Then get two blocks (one for each card)
You then need 4 more fittings:
http://www.overclockers.co.uk/productlist.php?groupid=962&catid=1529&subid=1778
or
http://www.overclockers.co.uk/productlist.php?groupid=962&catid=1529&subid=1826

The ones that come with the kit:
http://www.overclockers.co.uk/showproduct.php?prodid=WC-297-OK&groupid=962&catid=1529&subcat=1826
Click to expand...

Ahh so i use the fittings between the two gpus. I think i have 2 spaces or even 3 between the cards on my motherboard but i noticed that there are items for that aswell to buy so that wont be a problem. Thank you for your answer. =)
 
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