vlast3k

Looks good. Now put your eGPU under load by running some app in the background. That may be as simply as using the NVidia Control Panel->Adjust image where it shows the NVidia logo spinning. That will move the GPU out of power saving mode x1 1.1 mode into higher performance x1 2.0 mode which GPUZ should then show.

Aaahhh.. indeed, but the GPUZ stress test that I was running was unable to move the card out of the 1.1, so i ran a game and then it finally moved to 2.0

Maybe this was also the reason why I was initially confused... i need to check

thanks a lot for the support

Have had some reports that the Lenovo BIOS "automatic" setting doesn't actually set it to Gen2 speed. If it was set to Gen2 and the hardware couldn't handle it then you'd see stuttering sort of effects and "NVidia driver has stopped responding". If you find no way of forcing Gen2 then consider obtaining Setup 1.30 to do it.

Thie BIOS only allows an automatic setting, so i tried with Setup 1.30, but maybe I miss something. since gpuz still shows @x1 1.1

When I boot into Setup 1.30, in the status i see

[email protected] 10de:[email protected] (Nvidia)

Then i select PCIe ports > Gen 2 port -> p4...

Then i select either with link retraining or w/o (i did not understand what is the difference)

Execution of the command returs - "Successfully set port4 to Gen2 speed."

Save Port -> p4 ...

Then F3,

Then either Chainloader -> Test Run

Or I reboot, and then from the DIY eGPU Setup 1.30, i select automated startup

my startup bat contains

call iport gen2 4 notrain

call iport bus

call chainload bootmgr

Hi,

I have problems to enable PCI Express 2.0 link, My setup is

Lenovo T520, 6GB ram, only iGPU, Windows 7 64bit

egpu: PE4C-EC3C V1.2

Gigabyte Geforce GTX 470, latest nvidia drivers

Everything installs correctly, and an 1.1 link is established. 3dMark06 gives me 17k, i i suppose it is OK (i have underclocked the card a bit, since my PSU is 350w, and i had some BSODs).

The problem i have is that I wanted to play "Dreamfall: Chapters". What happens is that on some places in the game i get <4FPS.

As comparison - using the iGPU - Intel HD3000, with the same settings the game achieves 8-10FPS on the same place

On other locations it is much better with the external card.

This is why I assume that the bandwidth is not enough. I set PhysX to CPU, and use an external lcd.

The T520 BIOS is the latest version, and the Express Card Speed is set to automatic.

I tried the 60cm and 30 cm cables. Both result in 1.1 link in GpuZ

From other posts in the forum i learned that the people were successful in establishing 2.0 link, but with other eGPU

Is there something i have missed ?

Thanks, Vladimir