To be honest, I don't know. The mobo was bought about a year ago from some guy (though it should be new, or barely used, but it might as well could be already used in some pc - and for that, I don't know if that was OEM ...) over ebay, cause at that time, it was hard to find one with the 1156 socket in stores (already had the CPU). The PC isn't mine. So it might be as Tito says. It wasn't loader, this cert was there right after I installed fresh Win7, no matter what bios I used (my own mods and the one posted here as a reply to me), the X&RDST wouldn't match the pubkey and marker, becase that would be the Tarox and when I put f.e. Asus cert, it wouldn't match. I'm not sure though, if anyone tried to put there some weird bios, but since I've flashed it several times yesterday, that wouldn't be the problem. I tried Hazar's loader then, left it here for few hours, and put it away (because I'm not a fan of loaders much, slic is safer/better). But that doesn't change the fact, it was the same before using loader (and trying several bioses) Weird thing though, haven't found any bios mod for this mobo on the internet that has already been made. And that would make sense, if there's slic in the original bios, there wasn't need to do that. But, I'm no pro with bioses, I guess, everything is possible. Is there a way to tell if the mobo is OEM?