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Watercooling 5850s Questions

post #1 of 8
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So I recently just bought a second 5850 and set them up in crossfire. My temps on my first card have sky rocketed (when gaming they get up to 92 ) on stock clocks.

I'm looking into setting up a watercooling loop for just my 5850s as I am happy with my temps from my H50. I don't have a whole lot of money to spend, only around 200 atm. I have done a quick search for 5850 blocks and was only able to find ones in the 100 range. Am I not looking hard enough or is that as cheap as they get? Because if it is then I guess I will have to scrap the idea.

If anybody has any suggestions for me I would be glad to hear them!
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post #2 of 8
Thats as cheap as they get for the most part - you can check for some used ones, but then you have to think about the rad, fans, pump, tubing, etc. which will all run quite a bit of $$ - Make sure that you have as much space as possible between the cards (i.e. use the 1'st and 3rd X16 slots), and use something such as Afterburner to set a custom fan profile on the cards. - also make sure that you have proper ventilation in your case, if you have side fans, consider using them as exhaust fans to pull out the hot air from the cards.
Edited by appleg33k85 - 6/1/11 at 2:39pm
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post #3 of 8
You can buy universal gpu water blocks and get ram sinks, thats a cheaper route.

EK and lots of other companies make them.

How about a custom fan profile in MSI AfterBurner?
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by appleg33k85 View Post
Thats as cheap as they get for the most part - you can check for some used ones, but then you have to think about the rad, fans, pump, tubing, etc. which will all run quite a bit of $$ - Make sure that you have as much space as possible between the cards (i.e. use the 1'st and 3rd X16 slots), and use something such as Afterburner to set a custom fan profile on the cards. - also make sure that you have proper ventilation in your case, if you have side fans, consider using them as exhaust fans to pull out the hot air from the cards.
I ended up following your advice and moving my second card to my third pcie slot (reason I didn't originally was because I thought only first two worked with cf, dumb me) and my load temps are now hovering around 72. A twenty degree drop thanks!

PS what kind of load temps are the Max for a 5850?
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post #5 of 8
GPUs are normally fine up to around 100C

I had to watercool my 5870 because when i added the second card i had to use the second slot because of the PSU being in the way of the third. to keep the card cool i had to run the fan @ 100% which caused the fan to stop working after about 9 months. I already had a CPU loop, so i just added a block and a bigger rad.
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post #6 of 8
Quote:
Originally Posted by -relk- View Post
I ended up following your advice and moving my second card to my third pcie slot (reason I didn't originally was because I thought only first two worked with cf, dumb me) and my load temps are now hovering around 72. A twenty degree drop thanks!

PS what kind of load temps are the Max for a 5850?
And as an added bonus, you're going to see increased performance, because you had your cards in the wrong slots before.

Pretty much most if not all motherboards are designed so the correct slots for two-card crossfire or SLI are separated, for exactly the reason you moved yours (cutting down on heat). It matters because those are the only two slots that will run at 16x. The middle slot will only run at 8x. FYI for the future check the manual to see which slots are correct

I've got two 5850's in xfire as well... pretty sure TMax for the GPU is 100° C but I don't like to see it go above 80-85.
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post #7 of 8
Quote:
Originally Posted by mastical View Post
You can buy universal gpu water blocks and get ram sinks, thats a cheaper route.

EK and lots of other companies make them.

How about a custom fan profile in MSI AfterBurner?
I would avoid the universal blocks...at least on these cards. The VRMs really need to be actively coolled. They really heat up fast. The memory gets rather warm too

Only one of my 5850 is on water and I think I got the full cover block for about $95 new from Xoxide...I need to get another one, but I already had all the other water cooling gear. My water coolled one maxes out at 48° under furmark testing at 950/1100 with 1.25 volts. The stock air one is at 800/1100 with no voltage increase and hits 92° under furmark...though stays under 80° while actually gaming.
Edited by Vagrant Storm - 6/2/11 at 11:30am
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post #8 of 8
Quote:
Originally Posted by Vagrant Storm View Post
I would avoid the universal blocks...at least on these cards. The VRMs really need to be actively coolled. They really heat up fast.
Small VRM heatsink + incidental airflow is sufficient.
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