Why is my PCI Express x16 only running at x8?

NVIDIA_x64 · 15 Apr 2007 at 22:15

Why is my PCI Express x16 only running at x8

Defcon5 · 15 Apr 2007 at 22:23

Mobo? Chipset? SLi? Crossfire?

mishima · 15 Apr 2007 at 22:29

Yeah, more info please!

NVIDIA_x64 · 15 Apr 2007 at 22:30

soz bout giving you the spec

mobo is here http://www.gigabyte.com.tw/Support/Motherboard/BIOS_Model.aspx?ProductID=2173

and i have a 6800 gs and a intel PD 920 2.80GHZ and 2gb ram 667mhz

NVIDIA_x64 · 15 Apr 2007 at 22:32

I have ran a few apps and they say PCI Express 16 running at x8

EVEREST Ultimate Edition

CPU Z

and the nvidia control pannel and all say the same.

Defcon5 · 15 Apr 2007 at 22:38

Its running in Sli, you need to move the bridge connectors. Wont improve performance mind

mishima · 15 Apr 2007 at 22:39

Yeah that board has quad SLi and its probably running at x8 instead of x16. You should be able to alter that in the BIOS.

NVIDIA_x64 · 15 Apr 2007 at 22:41

Defcon5 said:
Its running in Sli, you need to move the bridge connectors. Wont improve performance mind

Sry for the Q but what is the bridge connector and I am not running SLI

Defcon5 · 15 Apr 2007 at 22:43

Lots of jumpers joined together, it splits the x16 into 2 x8 lanes.

You are not running SLi but your mobo is in SLi mode

EDIT// looking at the pic there seems to be some kind of switch, put it in non-Sli mode and it should be fine

NVIDIA_x64 · 15 Apr 2007 at 22:46

thank you sooooo much your the best

Defcon5

Defcon5 · 15 Apr 2007 at 22:48

Happy to help!