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6990 liquid cooling setup?

post #1 of 7
Thread Starter 
Hi (hope im posting this in the correct section of the forum)
Since I am planning to get a 6990 in two weeks I have read a few damming review's (only a few out a a fair few reviews) that say that the 6990 has heat management issues when playing for extended periods of time. I'm not 100% sure how true that is.

However I figure since I'm getting a self contained water cooling system delivered for my i7(Antec Kúhler H2O 920 High Performance Liquid CPU Cooler) I would look at getting a separate set up for my 6990(2 6990's in the future). Now i've found a few water-blocks that all average around 100-125ish mark so I am pretty sure I can get a descent water-block but I am at a total loss as to what pump/reservoir/tubing to get with regards to managing the 6990's (supposed) heat problem and if possible would like it to be containable in the drive bay's (if @ all possible).

So after a while of trolling round trying to figure out what would be best I have decided to ask some people that probably know much better than me about this stuff.

So if anyone could recommend a fairly high end cooling system setup(pump(s)/reservoir/tubing/coolant etc) that would fit into the 1-3 5.25 ATX case drive bays I have spare and would work well when only cooling the 6990(with the ability to cool 2 6990's would be perfect as its what ill be doing @ a later date) that would be awesome. Any and all suggestion's would be much appreciated. Thanks and sorry in advance for the longish post and hopefully I got all the terms for the water cooling correct.
Edited by killa2k - 8/5/11 at 9:55am
post #2 of 7
Any RASA kit of your choice.

Yeah, thats pretty much it, unless you insist on going custom. And as an option you can get rid of your 920 and run a full cpu/gpu loop, which will yield even lower temps than your 920.
post #3 of 7
Thread Starter 
Quote:
Originally Posted by Agenesis View Post
Any RASA kit of your choice.

Yeah, thats pretty much it, unless you insist on going custom. And as an option you can get rid of your 920 and run a full cpu/gpu loop, which will yield even lower temps than your 920.
kk kwl kwl thx for the response m8y much appreciated. Would these kit's be suitable for overclocking the 6990's ?
Edited by killa2k - 8/5/11 at 10:21am
post #4 of 7
Well you've got two real options, they make kits (but they tend to yield more of the CPU side). RASA makes some really good kits. You will want AT LEAST a 360mm rad for that 6990 (since it runs quite hot, or so I've heard).

Make sure when you get your 6990 that it is a reference board so that the full cover blocks actually work, otherwise you'll have to get a universal + heatsinks for the ram/mosfets

your other option is custom build.

Reservoirs are pretty much whatever best fits your build... as in if you want a bay res, get one, if all your bays are filled, get an internal. All it really does is hold the water (though make sure your pump is below your res because we doin't want it trying to pump air (isn't good at all).

Pumps. I'd recommend the MCP35X or MCP655. Both are good, strong and relatively quiet (though the D5 is a good pump too). The difference between the two is the 35X is for higher restriction loops. It's got larger head room (means it has higher pressure and will resist pressure drops inside the res/waterblocks) but has a slower flow rate, whereas if you has less restriction, the 655 has a greater flow rate. Again, make sure your mounting is below the res.

Tubing. Get primoChill or Tygon, both good brands... UV and color don't affect performance, so get what you want. Sizing, I'd recommend 3/8 or 7/16. I've always felt 1/2 was big and bulky and doesn't give you that much of a return (though if you want it, feel free. It won't hurt). Also, if you have too many tight bends, get some primoChill antikink coil. Always route your system using the least amount of tubing.

Fittings. Compression fittings look the cleanest. More expensive (it is what I use) but don't preform necessarily better than barbs. It's up to you here. I've never had a leak (which makes me happy )

Rads. You need at least a 360 (and I'd recommend more if you add another 6990 and maybe even another 120 if you water your CPU). IMHO, the Black ICE GTX series and Coolgate make the best rads, but make sure and look at fpis and what fans you will be using to mach a rad. The GTS are better with low RPM fans. Speaking of fans, push/pull is the best system, but if you can't do it then pull is better than push.

Finally, the main things that will cool your system down further is more radiator space and lower ambient temps. Adding more rads will only get you so far though via diminishing returns.

of course I had to edit... making your own kit allows your to really specialize for your needs. The built in kits do a good job, but one size fits all doesn't always work. Not to mention there is something about having a loop you designed yourself.
    
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t MSI 990FXA-GD80 MSI HD 6950 Twin Frozr II (4) 4GB G.SKILL Ripjaws 1600 
Hard DriveOSMonitorPower
Samsung 64GB SSD + WD 2TB 5400 + WD 1TB 7200 Windows 7 Ultimate x64 (2) Acer 23" LCD Backlit LED Rosewill 700W 
Case
Lian-Li Lancool k63 
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CPUMotherboardGraphicsRAM
AMD Phenom II 1100t MSI 990FXA-GD80 MSI HD 6950 Twin Frozr II (4) 4GB G.SKILL Ripjaws 1600 
Hard DriveOSMonitorPower
Samsung 64GB SSD + WD 2TB 5400 + WD 1TB 7200 Windows 7 Ultimate x64 (2) Acer 23" LCD Backlit LED Rosewill 700W 
Case
Lian-Li Lancool k63 
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post #5 of 7
Quote:
Originally Posted by killa2k View Post
kk kwl kwl thx for the response m8y much appreciated. Would these kit's be suitable for overclocking the 6990's ?
Absolutely. People have no issues running a CPU + Triple GPU setup on a single RX360.

If all you're doing now is a single GPU, then all you need is the kit and the waterblock of your choice for the 6990. If you wish to add more items into your loop later such as a CPU or another GPU, then all you need to do is to buy extra barbs or compression fittings.


Quote:
Originally Posted by theAlexandria View Post
Well you've got two real options, they make kits (but they tend to yield more of the CPU side).
...what?
post #6 of 7
I just meant the kits usually come with with a CPU block and if he was looking to just cool the GPUs (as was stated in the OP) then why have that block.
    
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t MSI 990FXA-GD80 MSI HD 6950 Twin Frozr II (4) 4GB G.SKILL Ripjaws 1600 
Hard DriveOSMonitorPower
Samsung 64GB SSD + WD 2TB 5400 + WD 1TB 7200 Windows 7 Ultimate x64 (2) Acer 23" LCD Backlit LED Rosewill 700W 
Case
Lian-Li Lancool k63 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t MSI 990FXA-GD80 MSI HD 6950 Twin Frozr II (4) 4GB G.SKILL Ripjaws 1600 
Hard DriveOSMonitorPower
Samsung 64GB SSD + WD 2TB 5400 + WD 1TB 7200 Windows 7 Ultimate x64 (2) Acer 23" LCD Backlit LED Rosewill 700W 
Case
Lian-Li Lancool k63 
  hide details  
Reply
post #7 of 7
Quote:
Originally Posted by theAlexandria View Post
I just meant the kits usually come with with a CPU block and if he was looking to just cool the GPUs (as was stated in the OP) then why have that block.
Ah okay

And on another note, if you're living in Canada - Dazmode offers a GPU only solution here, which he'll deduct $20 from your kit if you get rid of the CPU block, so might be of interest to you.

Alternatively you can sell the unused CPU block on ebay or the ocn market place for far more than $20.
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