@ Keropi
Are you sure the card is sitting parallel to the mobo? What I mean is, you have the right spacers and the card is seated correctly?
I had that same symptom from using wrong spacers with the Cyberstorm PPC. When I upgraded from MKII 060 I didn't change the spacers and then when I installed the Cyberstorm PPC it didn't sit right (very difficult to detect, see my pics in the album).