Hi,
Thank you for the feedback and input!
In idle I can see the following in GPU-Z:
1st card: PCI-E 3.0 x16 @ x8 3.0 (it seems as it is always under load, i'm running a 144hz monitor)
2nd card: PCI-E 3.0 x16 @ x1 1.1 (under load PCI-E 3.0 x16 @ x1 3.0) - as you can see the problem is not the version, it is the bus speed being x1 (the same can be read in UEFI using the board explorer
I am actually at work now so I cannot upload a screen shot of this, I will do so as soon as I can.
I am not running my Z87 GD65 anymore, I am running the MSI Z97 GAMING 7 motherboard and yes, I have flashed UEFI to the latest official version from your homepage.
I have overclocked both the GPUs, so I guess that's why I'm getting the higher score
Thank you!
Kind regards
Tobias