GTX 650 PhysX on PCI-E 2.0 x1

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neorejalist

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Jul 24, 2015
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As the title states, i'm currently thinking about plugin in the gtx 650 as a dedicated physx card for my gtx 660. I'm curious if the speed of the x1 slot is high enough. I can't just plug it in, because if i would go through with this i would first need to upgrade my PSU, which is currently an already meager 420w version.

Any thoughts?

 
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clutchc

clutchc

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Apr 22, 2009
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I've tried that same thing in an x4 slot, but never an x1 slot. As little bandwidth as I would expect PhysX to need, It should work... providing your x1 slot is open ended so the card will actually fit. Btw, what board do you have that has a PCIe x1 slot? I'd suggest trying it with the current PSU just to see if it is recognized in Nvidia's CP as suitable for a dedicated PhysX card.
 
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neorejalist

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Jul 24, 2015
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My MB is an Asrock 960gm/u3s3 fx, which has 1 pci, 1 pcie 2.0 x16 and 1 pcie 2.0 x1 slot. the x16 is obviously taken by the 660, so i'm left with the x1. It's not open-ended, i'm ordering a x1 to x16 extensioncable, so the x16 650 will fit. So, when the cable has arrived i'll just try it before i'll buy a new psu.
 
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