Pci e 16x@4x

[mohamad_kross_33]

Hello,
i have installed an 5850 on my asrock mainboard a785gxh on 16x slot and i have one vga not crossfire
but when igo to catalyst or gpu z it is running on 4x mode why ???????
thanks
my os is 7 x64
catalyst 10.3

 

[WR2]

Is your 5850 installed in the orange PCI-e slot or the green slot PCI-e?

 

[shadow187]

Make sure your HD5850 is installed on the top PCI-E slot, which is usually always the 16x slot.

 

[Maziar]

Hello and welcome to the forums
As shadow said make sure you have installed it on the top PCI-E slot not the second one

 

[WR2]

Which is the green slot on that board.

 

[nytrus90]

Hey

i seem to be having the same kind of problem with my asrock 790gxh mobo

i put my 5870 in the top x16 lane but it reads in CCC and everest and GPU-z as its running @ x8

also it seem that my bandwidth on my video card is only 116.2GB/s when it should be something like 153.XGB/s

anyone got any leads?

Kind Regards

 

[shadow187]

There's something enabled that causes slots to drop to 8x. I thought it was USB3.0.