Hi guys, looks like am having a similar problem. Am on z87 maximus vi, I have two raidr drives installed but only one can be seen by windows 8.1.
I have tried booting up with both cards in legacy mode and entering the marvel bios, also one card shows up here.
Is it possible to raid two raidr cards? I need some assistance, I have a raidr card doing nothing but looking pretty glowing red at the moment!
Thanks in advance for any help