My GPU Runs at 1.1 instead of 3.0 (Induced HEAVY Windows Aero lag and causes system to crawl)

MetalFoX

Honorable
Jun 2, 2013
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10,510
Hey guys, so let me give you the run down.

Main specs:
i5 3570K @ 4.6GHz
Asus Sabertooth Z77
16GB (4x4) 1600MHz Memory
MSI GTX 660 Ti

As you can tell my specs are pretty high, however GPU-Z says my GPU is running... well.. Have a look yourself...

52pGg.png


As you can clearly see under 'Bus Interface' it says 'PCI-E 1.1 x16 @ x16 1.1' which is essentially saying I have a 1.1 x16 graphics card running at x16 1.1 however we all know that my CPU supports 3.0 and my GPU IS a 3.0 card.

The next thing on the agenda is the fact that the 'GPU powers down when inactive' which I can completely understand, however I've ran countless games, benchmarks etc. and this does NOT change. The funny thing though, game performance is NOT affected but being on my desktop with windows aero (transparency on) is literally making my system crawl. Even moving my mouse and dragging windows around lags ferociously and looks / feels like 2-3 fps. (I do notice responsiveness lags in games when I have aero enabled on my desktop even though the game is fullscreen, but if I set it to basic then responsiveness is instant in games and on the desktop even though it should be with aero on anyway).

Another funny factor though, I have two 24" screens running at 1920x1080 but when I unplug one of them from the power so only one is detected and running, the problem is non-existant. Introduce that second monitor and boom chaos!

Any suggestions for a poor guy with problems? :/ Willing to answer any and every question to get this solved!
 

Ryan Klug

Honorable
Jul 6, 2013
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10,710


While the GPU is idle, it saves power by going to the PCIE 1.1 state. Click on the "?" next to the text to start a window with 3D graphics and your card will spin up. After a few seconds of power demand, the PCIE state will go up.

As far as the GPU clock is concerned, GPU-Z only shows stock clocks, not overclock settings. Try the "Sensors" tab. I think that will show what the actual clock is. If you run a program like EVGA Precision X or MSI Afterburner, you will see what it is actually running at as well as make OC adjustments. Enjoy!
 

MetalFoX

Honorable
Jun 2, 2013
8
0
10,510


I have already done this a few times. I've also ran other demanding benchmarks and games too and that value does not change at all. Like I said, my games are unaffected however with aero on in the background there's a responsiveness lag (not framerate) and with aero off there is no responsiveness lag.