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Water cooling 2 7950s Question

post #1 of 20
Thread Starter 
After balancing my money, I have found that, I could afford to bring in 2 7950s and put them under water. Looking at all of the possibilities, I see that there are a lot of choices.

I have been lurking on Overclock.net for Over a year and find that you have always been able to supply the best answers. So I come asking.

I have a switch 810 currently with a water block on the cpu with a 240mm rad on the bottom looking to expand to a 420 rad for the top and include 2 7950 sapphire's can someone guide me through this.
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post #2 of 20
Quote:
Originally Posted by Xemaj View Post

After balancing my money, I have found that, I could afford to bring in 2 7950s and put them under water. Looking at all of the possibilities, I see that there are a lot of choices.

I have been lurking on Overclock.net for Over a year and find that you have always been able to supply the best answers. So I come asking.

I have a switch 810 currently with a water block on the cpu with a 240mm rad on the bottom looking to expand to a 420 rad for the top and include 2 7950 sapphire's can someone guide me through this.



EK makes really nice affordable blocks for that card! in nikel and copper and looks awsome may I ask what 7950 you have? and you want to mod that case to handle a 420 rad?
post #3 of 20
Check my build it will help you get those CF babies some water love!

Sent from my GT-I9300 using Tapatalk 2
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post #4 of 20
Thread Starter 
Quote:
Originally Posted by REPUBLICOFGAMER View Post

may I ask what 7950 you have? and you want to mod that case to handle a 420 rad?
im looking at 2 of these
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7542562&CatId=7387

I was under the impression that the nzxt switch 810 could handle a 420 rad on the top
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post #5 of 20
Quote:
Originally Posted by Xemaj View Post

im looking at 2 of these
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7542562&CatId=7387

I was under the impression that the nzxt switch 810 could handle a 420 rad on the top


card has AMD on it so its reference and no not at all a 360mm takes up the whole top
post #6 of 20
yea 360 at top 240 at bottom are 280 and a 120 at the back
post #7 of 20
Thread Starter 
i have 3 140mm fans installed right now on the top
COOLING SYSTEM
FRONT, 2 X 120/140mm (1x 140mm included)
REAR, 1 X 120/140mm (1x 140mm included)
TOP, 3 X 120/140mm (1x 140mm included)
BOTTOM, 2x 120/140mm
INTERIOR, 2x 120/140mm (1x 140mm included)

http://www.nzxt.com/new/products/crafted_series/switch_810

this looks to be the 420mm rad here
http://www.nzxt.com/new/images/_upload/product_gallery/1750.jpg
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post #8 of 20
I have a switch 810 with 140mm, 240mm, and a 420mm Alphacool UT60 rads and two 7950's and I love it. I run watercool/heat killer 7970 blocks since my MSI 7950's have a 7970 PCB. Definitely put a 420mm rad in that thing, it will look great and get you good temps.

nude7e7a.jpg
zetasazu.jpg
uty9aga2.jpg

Fully loaded with my 7950's at 1200/1050 core/ memory running boinc 24/7 the cards stay below 45 C and their VRMs don't go over 50 C.
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post #9 of 20
Yeah, the 810 takes a 420 up top. I think people were getting confused and thinking 480 (4 x 120) not 420 (3 x 140).

A 240 and a 420 will cool your rig well. What pump are you running? A DDC or D5 type pump (MCP35# / MCP655) will be fine, but if you are running something like a Jingway or the X2O 750 you might need to consider a pump upgrade.


As metioned if you have "AMD" on the PCI-e connector then the PCB is reference design - any 7950 reference block should fit it. EK blocks are nice but there are other options out there. Really you can't go all that wrong with the big names - Koolance, EK, XSPC are just three.

Or you could go for the universal block route - it is significantly cheaper and you can use the blocks on future cards however you don't get water cooling on your VRMs (extra heat sink and fan needed).



Quote:
Originally Posted by skyhigh2004 View Post

I have a switch 810 with 140mm, 240mm, and a 420mm Alphacool UT60 rads and two 7950's and I love it. I run watercool/heat killer 7970 blocks since my MSI 7950's have a 7970 PCB. Definitely put a 420mm rad in that thing, it will look great and get you good temps.
Warning: Spoiler! (Click to show)
nude7e7a.jpg
zetasazu.jpg
uty9aga2.jpg

Fully loaded with my 7950's at 1200/1050 core/ memory running boinc 24/7 the cards stay below 45 C and their VRMs don't go over 50 C.

No wonder you are screaming up the ranks, that is 3.6m PPD on DiRT right there...

I get similar temperatures on my card at the same clocks, although I need 1.3v to be stable at 1200 (my girl is a thirsty beast).
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post #10 of 20
Quote:
Originally Posted by GingerJohn View Post

Yeah, the 810 takes a 420 up top. I think people were getting confused and thinking 480 (4 x 120) not 420 (3 x 140).

A 240 and a 420 will cool your rig well. What pump are you running? A DDC or D5 type pump (MCP35# / MCP655) will be fine, but if you are running something like a Jingway or the X2O 750 you might need to consider a pump upgrade.


As metioned if you have "AMD" on the PCI-e connector then the PCB is reference design - any 7950 reference block should fit it. EK blocks are nice but there are other options out there. Really you can't go all that wrong with the big names - Koolance, EK, XSPC are just three.

Or you could go for the universal block route - it is significantly cheaper and you can use the blocks on future cards however you don't get water cooling on your VRMs (extra heat sink and fan needed).
No wonder you are screaming up the ranks, that is 3.6m PPD on DiRT right there...

I get similar temperatures on my card at the same clocks, although I need 1.3v to be stable at 1200 (my girl is a thirsty beast).

I set my vcore at 1.175 in trixx but GPU-Z reports one at 1.135v and the other at 1.105v biggrin.gif
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