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My first card running on X8

post #1 of 13
Thread Starter 
Hello everyone.
today i bought a new mobo maximus iv extreme and a new cpu also..=D
so i own 2 GTX 460 1GB SLI.
the first card i plugged to the first slot and the 2nd card i plugged to the 4nd slot[to prevent overheating]so i went to the bios and i can see the first card is running on 8X and the 4nd one is running on X16...why?how do i make the first card run x16?
thanks
Edited by someonewhy - 5/6/11 at 1:27pm
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post #2 of 13
thats the way the Motherboard is supposed to run

4 x PCIe 2.0 x16 (single @x16, dual @x8, triple @x8, x16, x16 ) you got it running as triple.



Wont hurt performance hardly at all anyway.
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post #3 of 13
I hope you didn't buy that board for the NF200 chipset

I don't think a 460 is enough to saturate a sandy bridge x8 lane.
    
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post #4 of 13
Thread Starter 
sorry guys my fault i plugged the 2nd card to the last slot is that means it they both running on x16?just to be sure
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post #5 of 13
Thread Starter 
any1?
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post #6 of 13
a sli motherboard is normally 8x/8x in dual mode cause it's usually sharing the bandwidth with the first cards PCI Express 16x 2.0 slot only way to get 16x/16x is to get a motherboard to support 16x/16x in dual, soo with your motherboard whatever x16 2.0 slot you put it into that is 16x speed it'll always be 8x in Dual mode.

you wouldn't notice any differences anyways between 8x and 16x.
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post #7 of 13
With two GPUs, both cards should be running at 8x.. I expect as you placed it in the 4th slot (which is where a third card will go) it defaults to 8x 16x 16x... So 8x/16x.
 
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post #8 of 13
Thread Starter 
sorry but i dont get it....so right now they are working both on x16?the first card is plugged to the first slot and the 2nd card plugged to the last slot
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post #9 of 13
No. First card is running at 8x and the second is running at x16 (8x/16x), just like it is supposed to.
 
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post #10 of 13
Thread Starter 
and if i want the 2nd card run on X16 how do i do that?
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