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3-way SLi with DirectCU II or reference cooler ?

post #1 of 4
Thread Starter 
I know it may sound stupid, but I have 3x Club 3D GeForce GTX 670 2GB cards with reference cooler in 3-way SLi and the hottest card - middle card gets around 85*c degrees celcius in load and that with the auto fan control in the nvidia driver.


I have one Asus GeForce GTX 670 DirectCU II 4GB card arriving soon for my little ITX gaming LAN machine. Only this card is on sale for $423 (yes that very cheap in Denmark where I live, the normal price for the card is $590)) and but I've been thinking about getting two more GTX 670 4GB card and put 3 of them in my main gaming rig instead, and then put one of the Club3D GTX 670 2GB cards in the ITX LAN machine, since that would be fine.

However I have not been able to find information on whether setting 3x Asus GeForce GTX 670 DirectCU II in 3-way-SLi to be a good or bad idea heat wise ?

Will the cards be overheating since it's not blower style fans or is the DirectCU II cooler competent enought to let all cards be cool under load ?

I'd really like to upgrade to 4GB cards since I'm getting a 2560x1440 screen for my birthday (may 26th). Getting GTX 700 series cards will just be too expensive for me.
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Polar Claw
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Arkbird
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post #2 of 4
Well, to my knowledge, only the DCUII 7970 and 680 are triple slot, so you could fit them, but either way, the cards are going to get hot, especially on air. Still, the DCUII coolers will be cooler, and if you can sell your 2GB 670s and not be losing too much money from the whole ordeal, then go ahead.
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Folder Rodriguez
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post #3 of 4
Open air cooler gpus in sli are a bad idea. The top card/s will sky rocket in temps if inside a case. If you had a 90 degrees motherboard style case where the gpus faced upwards, then it would be fine . Same with an open bench.
    
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by MrTOOSHORT View Post

Open air cooler gpus in sli are a bad idea. The top card/s will sky rocket in temps if inside a case. If you had a 90 degrees motherboard style case where the gpus faced upwards, then it would be fine . Same with an open bench.

Yea that's what I'm afraid of. I know 2-way Sli with these kind of coolers is possible and rarely presents any heat issue. I used to run Gigabyte GTX 460 Windforce II OC 1GB cards in SLi if a noise damped Fractal case and they ran cool and silent.
3-way SLi is a different beast, and that's why if with all my 3-way SLi setups since GTX 280 have been cards with reference coolers (GTX 280, 470, 580).

I guess that I'd max be running 2-way SLi with those Asus GeForce TX 670 DirectCU II 4GB cards... which really isn't an option.
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Intel SSD 330 Series 120G SSD Kingston SSD Now V300 240GB SSD Kingston V-series Gen2 64GB SSD  Samsung SpinPoint F1 640GB 
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Polar Claw
(19 items)
 
Arkbird
(15 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7-5820K 3.3@4.1GHz MSI X99S SLI Krait Edition 2x Zotac GTX 1080TI F.E SLI @1616/5872MHz 32GB HyperX Savage 2666MHz DDR4 CL13 
Hard DriveHard DriveHard DriveHard Drive
Intel SSD 330 Series 120G SSD Kingston SSD Now V300 240GB SSD Kingston V-series Gen2 64GB SSD  Samsung SpinPoint F1 640GB 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.12 750GB Samsung SH-S203D DVD-Rom Phanteks PH TC-12DX Black Windows 10 Home Premium 64bit  
MonitorKeyboardPowerCase
Asus PB278Q 27"TFT 2560x1440@60Hz 5ms  Microsoft Sidewinder X6 Thermaltake Toughpower 1500w Corsair Vengeance C70 Artic White 
MouseMouse PadAudio
Logitech G9X Steelseries Steelpad 4D Onboard Realtek HD 
CPUMotherboardGraphicsRAM
Intel Core i7 5820K@4.1GHz MSI X99S Gaming 7 2x EVGA GTX 1080 SC ACX 3.0 SLi @2000/5508MHz 32GB (4x8GB) Corsair Vengeance LPX 2666MHz CL15... 
Hard DriveHard DriveOptical DriveCooling
Kingston V300 120GB SSD Western Digital Black 500GB, 7200RPM, 8MB cache... ASUS DRW 24F1ST DVD±RW  Arctic Liquid Freezer 120 
OSMonitorKeyboardPower
Windows 10 Home Premium 64Bit AOC e2450SWDA 23'6TFT 1920x1080, 5ms@60Hz Kingston HyperX Alloy FPS Fractal Design Newton R3 1000watt 80+ Platinum ... 
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Aerocool XPredator X3 White Logitech G5 Star Wars edition  Logitech X210 2.1 speakers 
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