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 Post subject: GPUZ shows nVidia 670 running @ x8...?
PostPosted: Sun May 27, 2012 4:11 pm 
Coppermine
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Joined: Wed Mar 25, 2009 4:40 pm
Posts: 688
Bit of background:
CPU: i7-870 (2.93 turbo 3.2)
Mobo: Gigabyte GA-P55A-UD3
GPU: MSi nVidia GTX 670

Ok. My original configuration included the 670 in the PCIex16 slot and a nVidia 9600 in the PCIex4 slot (as a PhysX card). I had installed GPU-Z previously to check GPU clock speed, etc. when I noticed the "Bus Interface" showed the following:
PCI-E 2.0 x16 @ x8 2.0 (sometimes 1.1)

I thought "that's odd...I wonder what's going on?" Then I remembered I had the 9600 in the x4 slot and I know some mobos will reduce the PCIex16 to x8 speed if another PCIex16 slot is utilized. So, I removed the 9600 expecting it would impact the bus interface.

Alas...it did not. So I'm stuck with a GTX 670 in a PCIex16 slot running at x8 speeds.

*Can I change the Bus Interface so I get the x16 speed?
**Will I see an impact if I do?

On a side note: I want to load an image to the forums so you can seen the GPUZ screen shot, but whenever I try to add an attachment I was get a "could not upload attachment to..." Does anyone know what I need to do so I can upload files?

I appreciate any assistance. Thanks!


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 Post subject: Re: GPUZ shows nVidia 670 running @ x8...?
PostPosted: Sun May 27, 2012 5:22 pm 
Team Member Top 10
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Location: back on the right side of the middle of the left side YES i'm folding
pics need to be on a hosting site, like photobucket, they will not upload from your machine.


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 Post subject: Re: GPUZ shows nVidia 670 running @ x8...?
PostPosted: Sun May 27, 2012 5:22 pm 
Smithfield
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Joined: Sun Jun 18, 2006 7:37 pm
Posts: 5098
Use Tinypic or imgur. You can upload images as a guest, but you have to remember to pick up the URL it generates.

Other than that, I would try updating the motherboard drivers. But if that doesn't work, then there's no worry. Video cards scale down to about x4 before performance starts to degrade.


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