GTX 480 3x SLI and the Corsair Obsidian 800D

H

heatlesssun

Extremely [H]
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Nov 5, 2005
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I had been thinking about this case for a while but was planning on getting a Mountain Mod case until I saw the 800 this weekend while visiting friends at one of their local CompUSAs, formally Tiger Direct. Should have bought this thing a LONG time ago, the cable management is just awesome and those three 480s look lost, lots of breathing room and my stressing testing with Furmark is getting the bottom card up to ONLY 98C after an hour, I was getting higher temps in the much more crowded Antec 1200 with only two 480s.

Got an Ultra X4 PSU to go with it and voilà, 3x SLI after two months of sitting on that third card, didn't feel the need really with only one monitor but I'll be going Surround and that looks immanent and I'll be VERY curious as to how 3x SLI is going to perform with that, I'm hoping for something good.:D

I'll try to post a few benchmarks with the new 257.21 drivers a little latter this evening.
 
Damn. Nice! Your next step is water cooling for the GPUs. Question is, would a 3x120mm rad be good enough for 3 GTX 480s?
 
I think you wire the corsair H50 wrong, the pump should go to normal fan pin, while the fan should be on CPU fan pin..
 
"Only 98c??" Are you serious? That's freaking hot! You need to put those puppies on water.
 
well considering other people own reach 105c with just 2 480 i think the 98c is quiet good too. If it was my setup wouldn't want the temps that high. I would have a box fan to blow on them when it time to game.
 
coldstorm said:
well considering other people own reach 105c with just 2 480 i think the 98c is quiet good too. If it was my setup wouldn't want the temps that high. I would have a box fan to blow on them when it time to game.
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Who? Who in the world is getting 105c under normal game load? I get 93c tops on my 480 in SLi and I use 2 monitors. And most people using a single monitor report temps even 10-15c lower than that.
 
vjcsmoke said:
Who? Who in the world is getting 105c under normal game load? I get 93c tops on my 480 in SLi and I use 2 monitors. And most people using a single monitor report temps even 10-15c lower than that.
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I was referring to furmark temps that was when 480 had just launch. he was referring to 98c temp as the bottom card temp after running an hour in furmark.
 
Looks sick man. Only problem i have with this beautiful case is the fact that there are no side door fans like my haf 932. The 932 comes with a super quiet 230mm fan and the highest my stock sli GTX 480 got while gaming was 91c sandwiched together, that was the rear card.

Now ive switched that 230mm fan out for 4 120mm antec tri cool fans. Just waiting on galaxie's non reference gtx 480



EDIT**** by the way, which motherboard are you using bro? Are they all installed into 3 pci-e 2.0 x16 slots?
 
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Here's a link to the mod's rigs page I put up for a rig I built for my friend. Also 3 way sli with GTX 480 SC's in an 800D. Video cards are running stock OC speed, but I forced the fan to 100% (he wasn't concerned about noise, since he has a 1200wat pc power and cooling and a delta cpu fan). On thing worth keeping an eye on is making sure you have enough intake fans (looks like your top three are exhaust). I originally had it configured so that the rear 140mm and top three 120mm were all exhausting. Because of the pressure generated by the gtx 480's, the rear fan was actually taking in air despite the fact it was supposed to exhaust. So I swapped around the two top front 120 mm fans to intake and everything worked much better.

http://www.evga.com/modsrigs/detail.aspx?buildid=21936
 
vjcsmoke said:
Who? Who in the world is getting 105c under normal game load? I get 93c tops on my 480 in SLi and I use 2 monitors. And most people using a single monitor report temps even 10-15c lower than that.
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With my tri-sli overclocked to 825/2100 @1.125 with fan at 100% my middle and top card max out at 105 in cod4/dragon age origins, which are the only two games I have that can keep a consistent 90+% load on all 3 gpu's. In custom cod4 maps with tons of fog and smoke and haze it will stay above 95% on all 3 gpus. Far more than furmark has gotten in usage for me so far, though I haven't tried it since the original drivers.

I've reverted to stock clocks due to noise, as the overclock doesn't do very much for me until they release Nvidia Surround. I also bought a bunch of scythe s-flex im going to throw in and see if increased airflow around the cards might drop the temps some. I'm sure the blowers are already getting all the air they can suck in through the cracks.

Stock clocks under heaviest load my 480's don't go above 83C on a custom fan profile that maxes out at 86%.
 
My 5970+5870 was cooking inside of the 800D so I can imsgine 3 GTX 480's. I need to upgrade my fans before I OC anything.
LC will come with the refreshed video cards.
 
98c is hot for normal gaming....... but thats not what he did. He ran 3 cards right next to each other and furmark for an hour and that was the temperature of his bottom card. Thats as bad as its going to get, real life he won't get close to it.
 
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why would the bottom card be the worst? I'd imagine the middle card, being both starved for air, and limited airflow on top of the card to be the hottest. It's sandwiched between 2 hot cards too.
Another point is hot air goes up, cold air goes down, so you'd think the bottom card got the coolest of the air in the case
 
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bizzmeister said:
Looks sick man. Only problem i have with this beautiful case is the fact that there are no side door fans like my haf 932. The 932 comes with a super quiet 230mm fan and the highest my stock sli GTX 480 got while gaming was 91c sandwiched together, that was the rear card.

Now ive switched that 230mm fan out for 4 120mm antec tri cool fans. Just waiting on galaxie's non reference gtx 480



EDIT**** by the way, which motherboard are you using bro? Are they all installed into 3 pci-e 2.0 x16 slots?
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bizzmeister - I have that case (haf932) and am curious if you've seen much improvement in temps with the 4 120mm fans?
 
I'n my testing of the case using EVGA precision, I found that the top card was the hottest. Replacing the 140mm fans with higher rpm ones made a significant difference for those gpus, they were starving for air.
 
stevecamp09 said:
bizzmeister - I have that case (haf932) and am curious if you've seen much improvement in temps with the 4 120mm fans?
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Im actually dieing to find out myself man. Ever since I returned my EVGA GTX 480 SC sli setup, Ive been waiting for the newer non-reference GTX 480's to come out. Specifically the new Galaxy GTX 480 with better cooling that still remain a 2 card slot design. Once those come out, im gonna hop right on em and will post up results.


But take a look at this, I can imagine it'll only be a lottttt better:


EDIT: cant find the god damn video, searched all over youtube, will have to ask a friend lol.


But basically it was this asian dude testing out a regular gtx 480 without a (1) case fan pointed at the heatsink then testing it out with a 120mm blowing at the heatsink, made like a 9-15c difference if im not mistaken. Now I can only imagine how much 4 good 120mm fans would lower overall temps across the board.
 
bizzmeister said:
Im actually dieing to find out myself man. Ever since I returned my EVGA GTX 480 SC sli setup, Ive been waiting for the newer non-reference GTX 480's to come out. Specifically the new Galaxy GTX 480 with better cooling that still remain a 2 card slot design. Once those come out, im gonna hop right on em and will post up results.


But take a look at this, I can imagine it'll only be a lottttt better:


EDIT: cant find the god damn video, searched all over youtube, will have to ask a friend lol.


But basically it was this asian dude testing out a regular gtx 480 without a (1) case fan pointed at the heatsink then testing it out with a 120mm blowing at the heatsink, made like a 9-15c difference if im not mistaken. Now I can only imagine how much 4 good 120mm fans would lower overall temps across the board.
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Look forward to your update! OP - apolgies for the thread hijack :)
 
WC those 480s....or cook your breakfast on a heat plate from the temps that come off it ;-)
 
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