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GA-P67A-UD4-B3 PCI-e single graphics lane problem

GA-P67A-UD4-B3 PCI-e single graphics lane problem
« on: April 20, 2011, 10:45:22 pm »
I have been through 2 of these motherboards so far and both have had the same problem.  The PCI-e x16 lane is only operating at x8 when it rightfully should be running at x16 as I'm only using one graphics card (GTX580 Twin Frozr II OC) and there are no other PCI-e devices connected to my sytem.  My question is: Is this working as expected or have I just been really unlucky and had 2 borked motherboards?

Dark Mantis

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Re: GA-P67A-UD4-B3 PCI-e single graphics lane problem
« Reply #1 on: April 21, 2011, 07:22:36 am »
Hi and welcome to the Gigabyte Forum.

Try turning off the USB3 and ESATA in the BIOS and see if that makes any difference. Although it won't make any difference to the grap[hics card as it will never perform above x8 anyway.
« Last Edit: April 21, 2011, 07:23:33 am by Dark Mantis »
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

Re: GA-P67A-UD4-B3 PCI-e single graphics lane problem
« Reply #2 on: April 21, 2011, 08:47:43 am »
Mantis, you are a godsend, you just saved me from a pointless RMA.  Its a little pants that to get the full x16 bus speed requires that I have to sacrifice USB 3.0 ports, but as I don't use them at present, then its not a massive issue yet.

Thanks for your help!

Dark Mantis

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Re: GA-P67A-UD4-B3 PCI-e single graphics lane problem
« Reply #3 on: April 21, 2011, 09:04:07 am »
Yes I would agree but as I mentioned it doesn't really matter as the GPU can't use all of the bandwidth anyway.

You are more than welcome for the advice. ;)
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy