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AM3+ Mobo capable of 3x SLI x16?

post #1 of 25
Thread Starter 
Hello all,

I've had a pretty masssive pipe-dream idea of having 3 of my current GPU in SLI, but I can't think of or find any motherboard that will fit them.
The Gainward GTX570 Phantom takes up 2.5 slots, essentially 3, so I basically would need a motherboard that takes up 9-ish expansion slots and had PCI-E slots with a large gap (2 slots) between them. I know of one AM3+ motherboard that fits this description, that would be the Gigabyte GA-990FXA-UD7. The issue is with tri-SLI on 3 Phantoms, it'd be running at x4.

One thing I could do to have 3 fit would be to watercool the cards, but that would be a massive job for me to undertake, and the main reason I got a Phantom in the first place was the awesome air cooling it has.

In the event that I win the lottery sometime soon, are there any motherboards out there that can fit 3 phantoms, air cooled, in 3x SLI at x16?

Thanks all!
Thelonius
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Thelonius
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8GB Corsair XMS3 1600MHz [4x2GB] 120GB Samsung 830 Pro SSD ~ 6.5TB on Mech HDDs Corsair H100i in push/pull 
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5x Nanoxia Deep Silence 140mm 3x Prolimatech Blue Vortex 140mm 2x Generic DeepCool 120mm Windows 7 Ultimate 64-Bit 
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post #2 of 25
Why bother when your using AMD? You'll get massssive bottlenecking.
post #3 of 25
Thread Starter 
That's a different topic altogether, let's stick to the GPU issue, and stay away from an AMD vs. Intel argument, I can see one starting already.
Thelonius
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Acer P221W 22" 1680x1050 [Center] HP L1940T 19" 1280x 1024 [Left] HP L1940T 19" 1280x 1024 [Right] Corsair Vengeance K90 
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Corsair HX1050 Nanoxia Deep Silence 6 [Will be modded] Corsair Vengeance M90 Accel World playmat (alos for trading card games) 
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Thelonius
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8GB Corsair XMS3 1600MHz [4x2GB] 120GB Samsung 830 Pro SSD ~ 6.5TB on Mech HDDs Corsair H100i in push/pull 
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5x Nanoxia Deep Silence 140mm 3x Prolimatech Blue Vortex 140mm 2x Generic DeepCool 120mm Windows 7 Ultimate 64-Bit 
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Acer P221W 22" 1680x1050 [Center] HP L1940T 19" 1280x 1024 [Left] HP L1940T 19" 1280x 1024 [Right] Corsair Vengeance K90 
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Corsair HX1050 Nanoxia Deep Silence 6 [Will be modded] Corsair Vengeance M90 Accel World playmat (alos for trading card games) 
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post #4 of 25
not sure if these suggestions are still relevant (its from mid 2011): http://www.overclock.net/t/1008526/mobos-with-the-most-pci-e-slots
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post #5 of 25
no...cpu intensiveness in games has decreased, and an 8 core bd will not bottleneck any games

and you NEVER need more than x8 with 3+ cards
you might notice a 1% performance decrease between x16 and x8, so any of the 990FX boards with 16x,8x,8x will work fine
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post #6 of 25
It's not an AMD vs. Intel argument. I'm not bias either way, I own cpus from both. It's just a proven fact, AMD cpus cannot drive 3 GTX 570s.


And to answer your question, the AMD chipset can't have 3 full x16 lanes, a quick google search would reveal that. Some are capable of x16, x8,x8, but nothing will do x16 times 3.
post #7 of 25
hes right about the second part

theres nothing that will use up 8 BD cores and be bottlenecked by it.
seriously, go look at some benches
yes intel CPU's are faster, but it will bottleneck as much as a 2500k, which is none
you greatly overestimate the needs of games today and the power of 570's
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post #8 of 25
@phillyd

I see you're trying to defend your purchase possibly?

Show me a Tri-sli setup with an amd cpu, that gets 99% gpu utilization on each gpu. It's not possible.
post #9 of 25
You can use PCIe riser cable, assuming somehow you can fit the cable inside.
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post #10 of 25
Quote:
Originally Posted by desmin88 View Post

It's not an AMD vs. Intel argument. I'm not bias either way, I own cpus from both. It's just a proven fact, AMD cpus cannot drive 3 GTX 570s.
And to answer your question, the AMD chipset can't have 3 full x16 lanes, a quick google search would reveal that. Some are capable of x16, x8,x8, but nothing will do x16 times 3.

Right.

A AMD X4 will not drive 3 GTX 570s.

A AMD FX 8-Core will not drive 3 GTX 570s. It's not an argument, it's a money saver. You'll be wasting the money.
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