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Solved Forum question
Started by Camper1905 | | 7 answers
Hey folks, SLI amateur here. I've recently assembled my new gaming PC and bought another Asus GTX 760 (DC2OC 2GB) and hooked them into SLI mode.
Everything seems to be working nicely but the temperatures are quite different on both cards.
For example, during benchmarks / games (Valley benchmark), my bottom card is about 64°C hot while the upper one is about 77°C hot. Is this normal? I'm affraid that the temperatures would had risen even more if I hadn't turned off the benchmarking or stopped playing.
I have tried various fan setups like, 4 intake, or 1 at the side and so on and nothing seemed to have improved the temps. I will post a couple of photos of my build so you can see the setup.
Specs here:
Gpu link: http://www.asus.com/Graphics_Cards/GTX760DC2OC2GD5/
Mobo link: http://www.asus.com/Motherboards/MAXIMUS_VII_HERO/
Psu link: http://www.coolermaster.com/powersupply/v-series-psu/v8...
Pictures:
(please ignore the bad cable management around PSU area, it's temporary just so I could test out the fans)
Now I have 8 fans mounted on my case but I obviously don't use them all. It was just to see which combination of fans would be the best but I didn't come up with any results.
__________________________________________________________
So anyway, do you gyus have any tips on how to imrpove the temperatures of the upper card?
How exactly should I mount the fans?
Thank you for your time and I'm looking forward to see your replies.
Everything seems to be working nicely but the temperatures are quite different on both cards.
For example, during benchmarks / games (Valley benchmark), my bottom card is about 64°C hot while the upper one is about 77°C hot. Is this normal? I'm affraid that the temperatures would had risen even more if I hadn't turned off the benchmarking or stopped playing.
I have tried various fan setups like, 4 intake, or 1 at the side and so on and nothing seemed to have improved the temps. I will post a couple of photos of my build so you can see the setup.
Specs here:
Mobo: Asus Maximus vii Hero
Cpu: i5-4690K @3.5Ghz
Gpu: SLI Asus GTX760 DC2OC
Ram: 16 GB ram, Kingston HypreX Beast
Psu: 850W psu, Cooler Master V850 Gold
1x SSD, Samsung Evo
1x HDD, WD 2TB Black
Liquid cooling Corsair H105 (2 fans at the top, exhausting through radiator!)
Case: Corsair C70 Vengeance
http://i.imgur.com/s08H51o.jpg - idle temperatures
http://i.imgur.com/Ebmc1Zc.jpg - full Valley benchmark temperatures
Gpu link: http://www.asus.com/Graphics_Cards/GTX760DC2OC2GD5/
Mobo link: http://www.asus.com/Motherboards/MAXIMUS_VII_HERO/
Psu link: http://www.coolermaster.com/powersupply/v-series-psu/v8...
Pictures:
Side: http://i.imgur.com/8S0doQ9.jpg
Zoom: http://i.imgur.com/4upGkUJ.jpg
Front fans, optional: http://i.imgur.com/WPr92Zu.jpg
Closed 1: http://i.imgur.com/csTBw7P.jpg
Closed 2: http://i.imgur.com/bn1H8wI.jpg
(please ignore the bad cable management around PSU area, it's temporary just so I could test out the fans)
Now I have 8 fans mounted on my case but I obviously don't use them all. It was just to see which combination of fans would be the best but I didn't come up with any results.
__________________________________________________________
So anyway, do you gyus have any tips on how to imrpove the temperatures of the upper card?
How exactly should I mount the fans?
Thank you for your time and I'm looking forward to see your replies.
Camper1905
September 7, 2014 4:24:27 PM
Camper1905
September 7, 2014 7:15:59 AM
hapkiman said:
What is you room or ambient temp like?Varies. 25°C, sometimes 30°C when it's super hot outside. Sun is unfortunately shining directly through my windows so my room tends to be a bit hotter.
Anyway, I've mounted 2 front intake fans, 1 bottom intake, 1 rear exhaust and 2 top exhaust fans.
I'll report if it helped or not but for now I don't see much of a difference.
I also don't think it's an issue with the card because the temps were the same even when I swapped the cards.
So it's definitely just heat.
If everything else fails, I'll try some high quality paste although I would rather try and improve the cooling in my case.
I'll leave this as a final option.
EDIT: here's a picture of my current fan placement: http://i.imgur.com/7UnTKOA.jpg
Improved temps: 5-10°C on the bottom GPU, 2-3°C on the top gpu
Folks, after this new fan setup I'm starting to think that I may know where the problem is.
The heat simply can't escape the GPU area. One specific spot around the GPU in the back of the case is very very hot, the rest of the case is very cool. It appears that the heat is being trapped here and therefore heating up the GPU massively.
Picture: http://i.imgur.com/XWwwwR6.jpg
Red is very heated area, Blue is very cold area
Best solution chosen by Camper1905
hapkiman
September 7, 2014 5:42:57 AM
What is you room or ambient temp like?
I would also experiment a little more with fan placement moving them around. Take some time and see what works the best.
It could always be an issue with that particular card. It may have issues and need to be RMA'ed.
But...Have you thought about completely removing the TIM from the warmer running card, and then reapplying some high quality paste.
I almost always do this and it typically doesn't void the warranty (check to be sure with ASUS).
When I got my MSI GTX 770, I found at full load it was also around 75-77C, but after completely cleaning all the TIM (which was WAY over applied!) using 91% isoproyl alcohol, and replacing with a tiny dab of MX-4 right on the die, temps dropped to 70C under same load.
I would also experiment a little more with fan placement moving them around. Take some time and see what works the best.
It could always be an issue with that particular card. It may have issues and need to be RMA'ed.
But...Have you thought about completely removing the TIM from the warmer running card, and then reapplying some high quality paste.
I almost always do this and it typically doesn't void the warranty (check to be sure with ASUS).
When I got my MSI GTX 770, I found at full load it was also around 75-77C, but after completely cleaning all the TIM (which was WAY over applied!) using 91% isoproyl alcohol, and replacing with a tiny dab of MX-4 right on the die, temps dropped to 70C under same load.
Camper1905
September 6, 2014 7:13:40 PM
Mousemonkey said:
My cards only have a 1c difference at full load so that difference in the OP's load temps is a bit large.
Indeed. I tried to mount a secondary side fan but I don't see any difference in temperatures.
The problem has to be something else. I'm pretty sure my airflow was already good enough for SLI.
geofelt said:
Upper cards tend to run hotter because they do not get sufficient cooling air.Hear from the bottom card rises into the cooling intakes of the upper card.
It would help if you removed the hard drive cage, or at least some parts to free up intake airflow.
.
If you can manage another side intake fan, that would help also.
My cards only have a 1c difference at full load so that difference in the OP's load temps is a bit large.
Camper1905
September 6, 2014 4:41:31 PM
geofelt said:
Upper cards tend to run hotter because they do not get sufficient cooling air.Hear from the bottom card rises into the cooling intakes of the upper card.
It would help if you removed the hard drive cage, or at least some parts to free up intake airflow.
.
If you can manage another side intake fan, that would help also.
Okay, that sounds pretty logical. I removed the drive cages as you said and it only improved the HDD temps a bit.
Also, I'm going to try to put another fan on the side panel, but I feel like I need to take heat out rather than to pump my case with fresh air.
At at moment I'm not using my bottom front fans, only the top row because I'd have to connect them to my PSU which means losing the ability to control their speed. So at the moment, I can have 8 fans max (controllabe) and I already need 4 conectors for the liquid cooling and rear exhaust. That leaves us with 4 more connectors for fans.
Upper cards tend to run hotter because they do not get sufficient cooling air.
Hear from the bottom card rises into the cooling intakes of the upper card.
It would help if you removed the hard drive cage, or at least some parts to free up intake airflow.
.
If you can manage another side intake fan, that would help also.
Hear from the bottom card rises into the cooling intakes of the upper card.
It would help if you removed the hard drive cage, or at least some parts to free up intake airflow.
.
If you can manage another side intake fan, that would help also.
See all answers