SLI How to set up PCI Express speed from x8 to x16?????

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GamerOC

439 posts

Ultimate Geek

#22521 30-May-2008 12:30

Hi there does anyone here know how to set up PCI express to run at x16 instead of x8, i ask this question because on my GPU-Z program states that PCI express capacity x16 but dispite running single card it is currently set to x8? can you guys please give me a hint how to change that.

Cheers,

Lew

eXDee

4033 posts

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#134485 30-May-2008 18:02

Its usually set in the bios.

On many early SLI motherboards if in SLI it can only do 8x per slot.

GamerOC

439 posts

Ultimate Geek

#134577 31-May-2008 11:23

my motherboard is not an SLI as it only have one PCIE socket and is capable of running on x16 speed according to the manual however despite running a single card a 7950GX2 once installed and the drivers installed it shows on GPU-Z PCIE capacity x16 running @ x8??? why is that. the other thing anoiyed me is only shows 512m of ram and 256bit when the card box stated 1g ram 512bit, despite this GPU-Z stated SLI enabled.Grr

Lew

eXDee

4033 posts

Uber Geek
+1 received by user: 1070

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#134597 31-May-2008 13:45

Thats odd, check your PCI-E settings in the bios? What do the nvidia drivers say about speeds etc?

GamerOC

439 posts

Ultimate Geek

#134694 1-Jun-2008 00:07

i cant find in the bios where to change that setting to x16 and when i check nvidias driver control it only show the PCIE running at 2500 mhz speed?

Lew