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ASUS Maximus V Formula 2nd PCIe Question?

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December 8, 2013 3:26:10 PM

Hello, guys i have an dilemma , I'm using ASUS Maximus V Formula MOBO and i'm considering to buy a R9 290X Lightning when it will be released. But i have a problem, I haven`t enough space between GPU's PCB and CPU Cooler (Noctua NH-D14), I'm pretty sure that GPU Reactor "Lightning Cards" won't fit so I will need to remove it. But i need maximum OC potential and I don't want to remove it. So I want to ask if I can use the 2nd PCIe to run a single GPU at full speed? Becuse i couldn't find a decent informaition on manual.
Will i have any problem if i use 2nd PCIe o run a single card?
It seems that is the only way using GPU Reactor on GPU.
Pls help me! Thx in advance!
a b Ĉ ASUS
a b V Motherboard
December 8, 2013 3:29:23 PM

The 2nd PCIe x16 slots does not run at full speed, but at x8. PCIe x16 3.0 at x8 is basically PCIe x16 2.0 at full speed.
You won't see a difference between the two.
http://www.asus.com/ROG_ROG/MAXIMUS_V_FORMULA/#specific...
Will there be problems running from the 2nd slot? Most of the time no.

How do you have that Noctua mounted? Mount it so it's sitting in a vertical position and there should be space for your video card.
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December 8, 2013 3:47:35 PM

lp231 said:
The 2nd PCIe x16 slots does not run at full speed, but at x8. PCIe x16 3.0 at x8 is basically PCIe x16 2.0 at full speed.
You won't see a difference between the two.
http://www.asus.com/ROG_ROG/MAXIMUS_V_FORMULA/#specific...
Will there be problems running from the 2nd slot? Most of the time no.

How do you have that Noctua mounted? Mount it so it's sitting in a vertical position and there should be space for your video card.



I can mount only this position for better cooling and compatibility.
I want to ask if i will see performance decrease? Because R 290X is a very powerful GPU with very fast memory bandwith
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Best solution

a b Ĉ ASUS
a b V Motherboard
December 8, 2013 3:50:04 PM

Nope you won't see a performance decrease.
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