7950 Stuck at PCI-E 1.1

Hi all, Just got an XFX Radeon HD 7950, and it appears to be stuck at PCI-E 1.1 16x, have tried diff PCI-E slots and this made no difference, my old 4870x2 was reporting PCI-E 2.0 working fine.
Any ideas?

David.

 

Where does it say it's stuck at 1.1? GPU-z?

 

Yep, have stressed it in the background, makes no difference, doesn't change at all from 16x 1.1

 

Click the ? on GPU-Z next the where it says 1.1

 

Yep, stressed the card, made no difference to PCI-E bus rate.

 

Have you tried going to Device Manager > Right click the GPU > Update Driver > Browse computer for driver > Manually choose the same driver from the list as you already have installed and tell it to install that one again ?

I've fixed that problem, and other clock issues by just doing that

Its as if the driver was not actually installed fully for some reason

Other things would be to reset the BIOS and set it back up again manually, I've had PCI-E lane speed problems fixed that way too

 

Tried updating or reinstalling Chipset drivers?

 

PCI-E Link power management is probably set for high power saving instead of moderate. Moderate will automatically adjust to PCI-E 2.0 (or 3.0 for that card on supported platforms) when there is a graphical load, I believe on maximum it stays at the lower speed..

 

Already tried, made no difference :|

 

Last you can do is stick that GPU in another machine and see what happens there, and vice versa, stick a known working card in your machine

you`ll get your answer that way I expect

 

This could also be an issue with the existing OS installation, a driver issue (not being updated), or even a bios issue. Have you updated the computer bios to the latest version?

 

Bios is at the latest version (though it was 2009 lol). Going to reinstall.

 

OS reinstall, and problem still there

 

Try it in your mates PC then.

 

It's reporting the right speed. You're limited to PCIe 1.1 with Skulltrail. Yeah I know you said it reported PCIe 2.0 with your 4870x2 but it was probably a glitch.

 

According to this:
http://www.tomshardware.com/reviews/intel-skulltrail-part-1,1768-9.html
nforce100s support PCI-E 2.0, as does the 5400 chipset.