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i7 920 and 2x6950's watercooling Q's???

post #1 of 15
Thread Starter 
I have a Corsair 800d and i'm cooling it with a rasa 750 rx360 kit currently. I want to add my two 6950's into the loop this week. Would that be enough radiator to cool my i7 920 and my two 6950's? Ill be using 2(EK-FC6970 V2 Acetal+EN (Nickel)) full cover blocks to cool the cards. My questions are as follows:

1)Has anyone used the previously mentioned EK blocks to cool their Sapphire 6950 Toxic/s? Will they work?
2)Is a back plate for the graphic cards purely cosmetic?
3)If I do need to install another rad where can I put it into a corsair 800d that wouldn't require modding?(I already have an rx360in push/pull up top)
4) Will the rasa 750 pump be enough for a cpu and 2 x gpu's? or should I look into upgrading that too?
5)If I get another rad should I install it as a separate loop or part of the existing one. If separate should I use the 360 for the GPU's or the CPU?
post #2 of 15
Quote:
Originally Posted by ks1;15235120 
I have a Corsair 800d and i'm cooling it with a rasa 750 rx360 kit currently. I want to add my two 6950's into the loop this week. Would that be enough radiator to cool my i7 920 and my two 6950's?

So far im running pretty much the same as you and everything at stock speeds is doing just fine on a single RX360, haven't done any overclocking, but stock speeds and it copes easily

Ill be using 2(EK-FC6970 V2 Acetal+EN (Nickel)) full cover blocks to cool the cards. My questions are as follows:

1)Has anyone used the previously mentioned EK blocks to cool their Sapphire 6950 Toxic/s? Will they work?

No, so i don't know

2)Is a back plate for the graphic cards purely cosmetic?

I think i didn't need to attach my Backplate to my HIS cards when installing the block, however with yours again i don't know

3)If I do need to install another rad where can I put it into a corsair 800d that wouldn't require modding?(I already have an rx360in push/pull up top)

If you want another rad internally i believe a RX240 can be installed down the bottom with small modding

4) Will the rasa 750 pump be enough for a cpu and 2 x gpu's? or should I look into upgrading that too?

Im using that same pump and its running my Rasa Block, two Heatkiller GPU Blocks and the RX360 Rad with no troubles so far

5)If I get another rad should I install it as a separate loop or part of the existing one. If separate should I use the 360 for the GPU's or the CPU?

No need for seperate loop i think, all in one should be fine. Thats my plan for the future anyway, an additional 240 or 360 RX rad in the same loop.

Hope this helps a bit, and hopefully someone can answer what i haven't and or give you more details on putting a second Rad in your 800d
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post #3 of 15
Can the same pump in that kit handle 2 rads , cpu , 2 gpus ?

well i'll be cooling 2x 6990's.

Im also looking for cooling solution..
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post #4 of 15
Thread Starter 
Also what waterblocks are the best for the 6950 toxics? Is the EK block the only one that would fit? I heard that EK was having trouble with the nickel plating on its blocks and the EK config tool only lists the EN Nickel/Acetal block as the one that might fit the toxic. Anybody have a 6950 toxic watercooled? What blocks are you guys using?
post #5 of 15
1) I think the "EK FC6970 V2" GPU blocks should work for the 6950 Toxic
http://www.ekwaterblocks.com/shop/blocks/vga-blocks/ati-radeon-full-cover-blocks/radeon-6xx0-series/ek-fc6970-v2-acetal-nickel.html
Look at the PCB in the "more views" section. I believe it looks the same as the Toxic's PCB but the only difference is its blue instead of red.
Here is the Toxic's PCB:
http://www.xbitlabs.com/picture/?src=/images/graphics/sapphire-radeon-hd-6950-toxic/10_saptox_frn_big.jpg

Make sure you get the "EN" version of the block.

EDIT: Go for a single loop. An RX360 + a single 120 rad would be a good combination to cool your CPU and 2 GPU's. You can try to mount the single 120 on the rear, or on the bottom of your 800D case.
Edited by Yokes29 - 10/10/11 at 12:04am
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post #6 of 15
Quote:
Originally Posted by ks1;15235120 
I have a Corsair 800d and i'm cooling it with a rasa 750 rx360 kit currently. I want to add my two 6950's into the loop this week. Would that be enough radiator to cool my i7 920 and my two 6950's? Ill be using 2(EK-FC6970 V2 Acetal+EN (Nickel)) full cover blocks to cool the cards. My questions are as follows:

I use the rx360 along with the VPP655 pump on my cpu and xfire 6950's. i think you'll be fine. as long as you set everything up right and get nice airflow through the rad.
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post #7 of 15
I do push/pull on my RX360 rad with 1000rpm fans and it keeps my cpu and two cards pretty cool.

My ambients are low though due to having my set up in a basement, so that helps a bit.
    
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post #8 of 15
Thread Starter 
So I bought an rx120 and 2 of the EK blocks and I was wondering what fitting/s I will need to connect the cards together. I have an msi pro(not the pro-e) motherboard and the cards are very close together(the x16 slots are really close). Thanks for all your help and hopefully i can order whatever fittings I need today so I can assemble everything when the blocks come.

*EDIT* Would this work?
http://www.petrastechshop.com/dadencrfiset.html

I would need two right?
Edited by ks1 - 10/10/11 at 1:17pm
post #9 of 15
You could also try these. They are adjustable.
Koolance Dual VID Connector Black Adjustable 1 Slot Spacing

Yes you can connect 2. Which means your GPU's will have parallel cooling. With 1 then you will have serial cooling.
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post #10 of 15
Thread Starter 
which would be better? Im running an rx360 and an rx120 with the stock rx rasa pump. How does parallel and serial cooling differ? Also that Koolance Dual VID Connector says for GPU's that bypass one slot. Mine are going to be pretty close together you still think it would work? Feel free to let me know what I need to improve on, things like my tubing or the order of everything. I ordered Primochill tubing 7/16 so that is what I will be using to redo/upgrade the water cooling with the parts listed above.

Here's a Pic of my system.
Edited by ks1 - 10/10/11 at 11:44pm
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