PCI-Express 2.0 but detected as PCI-Express 1.1

[Syidi]

I have a problem...
I'm using a HD6870 with my mobo but in GPU-Z it stated as PCI-Express 1.1...
my mobo...
MSI K9A2 Neo-F
AMD 770 chipset

I tried...
render test using GPU-Z (no change)
change the PCI latency timer it's also failed me
update new bios (no change)
update new chipset driver (no change)


How to get the card to its maximum bandwidth to pci-express 2.0...?

[k3vst3r]

you need fire up a GPU test than watch gpu-z speed reported for pci-e slot

why?

well modern gpu's they clock back pci-e slot to 1.1 from 2.0 or 3.0 to save power

[Cyberdyne]

It said he tried that, k3vst3r.

Next I would try reseating the card, trying a different slot (if available) and then another computer. Making sure the connectors are clean would also not hurt.

[k3vst3r]

ahh perhaps dirt in the pci-e slot

try an reseat it

[Agent-A01]

try unigine heaven in windowed mode

[Rich_Guy]

Isn't he going to be getting the same peformance at 2.0, that hes getting at 1.1 though.

[The Chubu]

Originally Posted by k3vst3r

you need fire up a GPU test than watch gpu-z speed reported for pci-e slot

why?

well modern gpu's they clock back pci-e slot to 1.1 from 2.0 or 3.0 to save power

This. I think it actually just steps back from 16x PCIe 2.0 to 8x or 4x, but GPU Z displays it as "PCIe 1.1" of equivalent bandwidth (ie, PCIe 1.1 x8 instead of PCIe 2.0 x4)

[pimp_gimp]

Originally Posted by Syidi

I have a problem...
I'm using a HD6870 with my mobo but in GPU-Z it stated as PCI-Express 1.1...
my mobo...
MSI K9A2 Neo-F
AMD 770 chipset

I tried...
render test using GPU-Z (no change)
change the PCI latency timer it's also failed me
update new bios (no change)
update new chipset driver (no change)


How to get the card to its maximum bandwidth to pci-express 2.0...?

This is normal, as others have said run a program that will put some load of your GPU, and the PCI-e lanes will show correctly at 2.0,

[Cyberdyne]

And as he states in the OP you just quoted, GPU-Z render test was used, and if that was not a lie, then that would not be the problem.

And improvement or not, most of you here would still prefer that it worked as it should.

[Syidi]

I try already to reseat the gpu then fire up render test it still no result...
my Gpu-Z is showing PCI-E 1.1 x16 @ x16 1.1 at Bus Interface

later I would try the unique heaven but first I need to download it...

guys, I will update you once the unique heaven test is finish whether my gpu bus operate at pcie 2.0 speed...

[Syidi]

Originally Posted by Cyberdyne

And as he states in the OP you just quoted, GPU-Z render test was used, and if that was not a lie, then that would not be the problem.

And improvement or not, most of you here would still prefer that it worked as it should.

yes... that true I can't believe that my mobo pcie run at 1.1 speed as it said it is pcie 2.0 already...

[Syidi]

Originally Posted by The Chubu

This. I think it actually just steps back from 16x PCIe 2.0 to 8x or 4x, but GPU Z displays it as "PCIe 1.1" of equivalent bandwidth (ie, PCIe 1.1 x8 instead of PCIe 2.0 x4)

if pcie 1.1 x16... it is pcie 2.0...?

[Cyberdyne]

No, In a nutshell PCI-E 1.1 is half the speed of the different variants of 2.0. So 1.1 x16 is equivalent to 2.0 x8.

[Labyrinth]

What settings are there in the BIOS for the PCI-E ?

failing that I would consider contacting MSI

[Syidi]

Originally Posted by Labyrinth

What settings are there in the BIOS for the PCI-E ?

failing that I would consider contacting MSI

It's only hv setting whether the user want to use pcie or pci for using the graphic bcuz the mobo do not hv any discrete gpu... then setting for pci latency timer... i still can't figure out the problem... mybe i can try to contact msi

[Rich_Guy]

Originally Posted by Syidi

I try already to reseat the gpu then fire up render test it still no result...
my Gpu-Z is showing PCI-E 1.1 x16 @ x16 1.1 at Bus Interface

Originally Posted by Syidi

if pcie 1.1 x16... it is pcie 2.0...?

No, GPU-Z is stating that the slot is only PCI-E 1.1, so try the card in another, and also, if you have any other cards in any of the other PCI-E slots, try removing them (so you only have the 6870 in), to see if that changes it.

[Syidi]

ohh... never thought of that way...
orite... i try first, then update later

[Syidi]

Originally Posted by Rich_Guy

No, GPU-Z is stating that the slot is only PCI-E 1.1, so try the card in another, and also, if you have any other cards in any of the other PCI-E slots, try removing them (so you only have the 6870 in), to see if that changes it.

no changes... I removed my usb 3.0 adapter from pci lanes on my board then fire up render test it still show pcie 1.1 x16

[Agent-A01]

Originally Posted by Syidi

no changes... I removed my usb 3.0 adapter from pci lanes on my board then fire up render test it still show pcie 1.1 x16

u using some marvell or similar for your HDDs? i know marvell and the others borrow pcie lanes

[Syidi]

I did'nt use marvel for my HDD, connect it normally to sata port...

hmm... no idea