Ipmark, I couldn't manage to get into windows this time before the motherboard bios automatically restored the old marvell version. After fiddling a bit with mmtool and a hex editor I got close to replacing all parts for the Marvell, but in the end it seems I bricked the controller. So now I simply moved the ssd back to the intel port. Screw Marvell.
Flash original bios, patch via software Marvell option rom firmware, do not reboot, make a backup bios.