Gripen90
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So I have managed to sell my 2x GTX 780Ti's and my GTX Titan and now I want to get 3x GTX 970 cards since I find the performance close to GTX 980 while being much cheaper. Of cource I could get 2x GTX 980's but the power of 3x GTX 970 just appeals a lot more  However I'm in doubt what 3x GTX 970 to get ?, the TDP on the GTX 970 should be 145watt so I assume that it doesn't get too hot. I won't be watercooling so it's going to be all air based like in my current case with 3x GTX 780's with reference coolers. I have looked at the EVGA GTX 970 Superclocked ACX 4GB card. Which is a bit faster than reference clocks with Base clock of 1165MHz and Boost of 1317MHz. But I don't know if that type of cooler will manage in 3 way SLi without overheating. I have superb airflow in my case to cool my existing 3x780's.  I must admit I'm mostly keen on the EVGA cards primarily due to their clock speeds, but I'm worried if the cards can manage to handle 3 way SLi with decent temperatures ? I have only tried to run 3 way SLi with reference radial blower designed coolers which works perfectly in my case.
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scarface_810
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/19 13:55:57
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i thick you be fine. keep airflow good. 3 way 970 is way to go. cheper. me looking at them what me to get 3.
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Gripen90
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 08:07:54
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Well I hope so. Any first hand experience with those ACX coolers in 3 way SLi is highly appreciated.
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tucker147
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 08:24:15
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I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
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Hillguy
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 11:29:31
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tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
+1 if you sli 3 acx coolers you will have a very difficult time trying to exhaust the heat away from the cards , get the blower style  
post edited by Hillguy - 2014/09/20 11:32:32
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VVhiplash
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 11:44:25
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tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
When you say "reference" do you mean the one like EVGA's cheapest 970, with the closed full wrap-around shroud? (or whatever you call it) Or do you mean "reference" as in the titan-like metal designed shroud? Because if you mean the latter, PLEASE, point me in the direction on where to puchase it. Personally, I don't like the look of the ACX, and the basic blower style shroud on the cheaper 970s might as well be a shoe box.. :P
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tucker147
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 11:49:41
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Whiplash88
tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
When you say "reference" do you mean the one like EVGA's cheapest 970, with the closed full wrap-around shroud?
Yeah, those ones.
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Gripen90
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/20 16:55:45
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EVGA's 970 cards based on the Titan cooler or the old style reference cooler we know from the 670/680 series aren't to find anywhere in my country (Denmark), only the ACX 1.0's ones. But the user comments about the low quality voltage regulation components on other forums (and in TPU's review of the GTX 970 SC ACX 2.0 card) used on the EVGA 970 has led me to order 3x Gainward GTX 970 with radial blowers instead.
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seth89
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/21 08:04:40
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Maybe you should stick to the reference cooler. They pull air in from the back and blow it out the front. They might be a better solution for 3way-sli. You could always OC them with the EVGA software yourself if you want it to run like the superclocked version.
But with that said Im sure you can get three 970sc cards with the ACX coolers and stack them. I dont think Nvidia would sell a 3way sli product that would overheat.
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bcavnaugh
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/21 08:09:55
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tucker147
Whiplash88
tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
When you say "reference" do you mean the one like EVGA's cheapest 970, with the closed full wrap-around shroud?
Yeah, those ones.
They look like the old GTX 660/660Ti Coolers only smooth and not like a box. You might be better off going to two GTX 980 then three GTX 970 cards. I had 3 GTX 760 cards and they ran at 82C all the time, to hot for me.
post edited by bcavnaugh - 2014/09/21 08:12:24
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3etatester
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/21 09:37:33
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bcavnaugh
tucker147
Whiplash88
tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
When you say "reference" do you mean the one like EVGA's cheapest 970, with the closed full wrap-around shroud?
Yeah, those ones.
They look like the old GTX 660/660Ti Coolers only smooth and not like a box.
You might be better off going to two GTX 980 then three GTX 970 cards.
I had 3 GTX 760 cards and they ran at 82C all the time, to hot for me.
Where those ACX or blower? I'm curious.
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bcavnaugh
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/21 14:30:02
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Blower  Older Twin Fan NON ACX Cooler  With ACX Cooler 
post edited by bcavnaugh - 2014/09/21 14:34:52
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Gripen90
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Re: GTX 970 ACX 3 way SLi possible ?
2014/09/21 15:19:59
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bcavnaugh
tucker147
Whiplash88
tucker147
I suggest getting ones with the reference blower style cooler, so it will remove heat much more efficiently. In my experience, open coolers + multi-card config = bad, especially with more than 2 cards.
When you say "reference" do you mean the one like EVGA's cheapest 970, with the closed full wrap-around shroud?
Yeah, those ones.
They look like the old GTX 660/660Ti Coolers only smooth and not like a box.
You might be better off going to two GTX 980 then three GTX 970 cards.
I had 3 GTX 760 cards and they ran at 82C all the time, to hot for me.
I have 3x GTX 780 reference cards at the moment and they run at their normal target temperatures even with a slight overclock  ... however I have sold them now. Any how I have ordered the 3x Gainward GTX 970 4GB cards with a radial style blower fan.  No EVGA GTX 970 with the same type of cooler are available in my country (Denmark) at the moment. 
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TheRIGG
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Re: GTX 970 ACX 3 way SLi possible ?
2014/10/11 16:30:49
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I would suggest the blower style version. I am currently running 3 way with the g1 series of the gtx 970's. I have found even with a full ventilated open case my first card will idle at about 55 degrees. I did a test run with Crysis 3 everything maxed out i was able to retain a steady 60fps with msaa x2 on triple monitor surround. Good news right? Not exactly, after 10 minutes of play time I came to realise with fans maxed out my first gpu was hitting 80 degrees. After a few minutes of monitoring temps, got too hot and game crashed. The first card hit 90 degrees second was sitting on 84 degrees and third card was a lot cooler averaging 55 degrees.
I also tried running game with no overclock. Similar scenario just took a bit longer for those temperatures to rise.
This could also be a driver issue? We will find out as drivers mature with the months to come. On the other hand I have a full water cooled loop that would work a charm to cool these beastly cards down. But there are no sign of waterblocks available at the moment. So till then i will be using only 2 way sli spread out further apart on my motherboard for better air flow. By doing this the cards were able to sit on a steady 68 degrees max temps with acceptable fan noise. I did lose about 17% fps in Crysis, but with just some settings dropped down a little I was very happy to see i was sitting on 60fps.
I hope this could help anyone else looking at purchasing 3 way sli.
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jeppouza
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Re: GTX 970 ACX 3 way SLi possible ?
2014/10/29 12:41:34
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3way 980 SLI here, reference coolers, too hot on air, just limit the cards temp to not go above 80ºC, but can't extract all performance from each card, just sucks, my 2way spaced SLI was far away better for temperatures, I do regret a lot.
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Biggmicny
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Re: GTX 970 ACX 3 way SLi possible ?
2015/02/27 09:56:31
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jeppouza
3way 980 SLI here, reference coolers, too hot on air, just limit the cards temp to not go above 80ºC, but can't extract all performance from each card, just sucks, my 2way spaced SLI was far away better for temperatures, I do regret a lot.
I have 2 970 FTW+ edition cards and with the SLI Pro bridge the 1st card sits at 80c and second maybe sits peak 64c, granted i can drop the pro bridge and add a long flex to space them out,(asus rampage 3 extreme 4way-sli) but card makers should think about these cards fans being right on top of another card, kind of blows(no pun intended) for airflow.
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stalinx20
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Re: GTX 970 ACX 3 way SLi possible ?
2015/04/08 06:51:33
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So, I'm think about going 3 way SLI, also, and i'm readin these reviews about "heat". Would it make a big difference with a 180mm side fan blowing on the cards?
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MrImSoGood
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Re: GTX 970 ACX 3 way SLi possible ?
2015/04/10 16:18:13
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Gripen90
So I have managed to sell my 2x GTX 780Ti's and my GTX Titan and now I want to get 3x GTX 970 cards since I find the performance close to GTX 980 while being much cheaper. Of cource I could get 2x GTX 980's but the power of 3x GTX 970 just appeals a lot more
However I'm in doubt what 3x GTX 970 to get ?,
the TDP on the GTX 970 should be 145watt so I assume that it doesn't get too hot.
I won't be watercooling so it's going to be all air based like in my current case with 3x GTX 780's with reference coolers.
I have looked at the EVGA GTX 970 Superclocked ACX 4GB card. Which is a bit faster than reference clocks with Base clock of 1165MHz and Boost of 1317MHz. But I don't know if that type of cooler will manage in 3 way SLi without overheating. I have superb airflow in my case to cool my existing 3x780's.
I must admit I'm mostly keen on the EVGA cards primarily due to their clock speeds, but I'm worried if the cards can manage to handle 3 way SLi with decent temperatures ?
I have only tried to run 3 way SLi with reference radial blower designed coolers which works perfectly in my case.
Watercool your cards. Heat will always be an issue with the ACX or blower. Then you'll still to deal with the noise of the fans
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dreamss
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Re: GTX 970 ACX 3 way SLi possible ?
2015/04/10 16:30:47
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EVGA_JacobF
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Re: GTX 970 ACX 3 way SLi possible ?
2015/04/10 17:24:50
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It can work but suggest to have very good airflow into and around the cards.
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vipersb1
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Re: GTX 970 ACX 3 way SLi possible ?
2015/04/11 20:14:16
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MrImSoGood
Gripen90
So I have managed to sell my 2x GTX 780Ti's and my GTX Titan and now I want to get 3x GTX 970 cards since I find the performance close to GTX 980 while being much cheaper. Of cource I could get 2x GTX 980's but the power of 3x GTX 970 just appeals a lot more
However I'm in doubt what 3x GTX 970 to get ?,
the TDP on the GTX 970 should be 145watt so I assume that it doesn't get too hot.
I won't be watercooling so it's going to be all air based like in my current case with 3x GTX 780's with reference coolers.
I have looked at the EVGA GTX 970 Superclocked ACX 4GB card. Which is a bit faster than reference clocks with Base clock of 1165MHz and Boost of 1317MHz. But I don't know if that type of cooler will manage in 3 way SLi without overheating. I have superb airflow in my case to cool my existing 3x780's.
I must admit I'm mostly keen on the EVGA cards primarily due to their clock speeds, but I'm worried if the cards can manage to handle 3 way SLi with decent temperatures ?
I have only tried to run 3 way SLi with reference radial blower designed coolers which works perfectly in my case.
Watercool your cards. Heat will always be an issue with the ACX or blower. Then you'll still to deal with the noise of the fans
What he said. I have my 2 970 ACX's on water and they both idle around 28-30 degrees and on full load around 34-36.
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