Would it be dangerous to run two EVGA GTX 780 SC w/ ACX Cooling in SLI, with my current setup?

Here is my current set-up:
Case : http://www.newegg.com/Product/Product.aspx?Item=N82E16811139005
Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128593
CPU: i7 4770k at 4.3 GHZ with Corsair H100i
Graphics (and this is the tricky part): http://www.newegg.com/Product/Product.aspx?Item=N82E16814130918

I have recently been tempted to upgrade to a 1440p 27 " screen and would want to buy a second graphics card of the same model to put them in SLI, now here's my question: Assuming I can only place the cards in the first and second PCI Slots, would the SLI be possible or would it be dangerous to do it, regarding the temps and the lack of space between the cards?

Cooling: From what I've read from similar tomshardware threads, if takes good cooling for a SLI system in a mid tower, So here's my current cooling set-up:
Intake: 4x 120mm fans on the side window (http://www.newegg.ca/Product/Product.aspx?Item=N82E16835233051) Sorry, couldn't find the .com link
1x 200mm front fan running at around 50% rpm (~400 rpm) (http://ncix.ca/products/?sku=73964&vpn=BFF-SPRO-20025WW-RP&manufacture=BitFenix)
Exhaust: 1x 120mm fan in the back running at around 50% rpm (~950 rpm) (http://www.newegg.com/Product/Product.aspx?Item=N82E16835103093)
2x 120mm fans on the top of the case (from the H100i) running at around 2100-2400 rpm while gaming (http://www.newegg.com/Product/Product.aspx?Item=N82E16835181032)

Other Thoughts: I can always boost the front and back fans to make them run at 100% power or so (like my side fans)
Current temps after running BF4 at Ultra 1080p with Anti-Aliasing:
GPU: 65C
Motherboard: Highest temp is 40C, rest is around 30C
CPU: 45C (cooled by Corsair H100i and overclocked at 4.3 GHz)
Idle temps:
GPU: 26C
CPU: 24C (11C according to Speedfan)
Motherboard: Highest is 30C and rest is 20C
Here is a picture (sorry for the crappy phone quality): http://imgur.com/yiaji45
Here is a pcpartpicker list of my whole computer for future reference: http://ca.pcpartpicker.com/p/215mU
5 answers Last reply
More about dangerous run evga gtx 780 acx cooling sli current setup
  1. The space between the first and second slot is quite the standard for current SLI or CF setup. So it will be fine. For much older mobo the situation can be much worse since both card are sandwich together because of how mobo maker arrange the pcie x16 slot.
  2. But wouldn't the proximity create intense heat which is bad for the cards?
  3. There were enough space between the card. In any SLI or CF setup the top card will always be hotter than the bottom. You can increase or make your own fan curve to keep the temperature much lower than using driver default control (auto). Also most card able to handle temperature up to 90c+ so you will be fine if you can keep the top card below 90c. Sidefan will help to cool the card but i suppose your graphite 600T does not have mount for side panel fan.
  4. It actually does, as apecified in my post I am using 4x 120mm 1500rpm fans on the side.
  5. I would suggest you SLI your 780 before buying a 970/980. I recently upgraded from an x58/980 extreme to an x99/with a 5960 and SLI'd my 780. There isn't all that much to gain with the 970/980 and if you go x99/5820 you still have the path to a 5930 or 5960 and I'm willing to bet in a few months there will be a 980TI or something better. X99 has so many fantastic features such as native USB3 and loads of SATA3 as well as M.2 or PCIe SSD support.
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