After having not found the latest version of the Gigabyte GA-MA770T-UD3 BIOS with SLIC 2.1, I decided to mod version F8 myself, with Award Mod Tool. However, I'm quite unsure about one thing. For older versions of this BIOS, OEM7 with ACPITBL at end has almost exclusively been used by the "pro" modders. However, I've also read about this not activating Windows on some Gigabyte boards, and SSV3 being the generally recommended option. Out of OEM7 and SSV3, which is likely to cause the least problems on this board? Thanks. N.B. This isn't the GA-MA770T-UD3P, which is slightly different, and has different BIOS versions.
I would use SSV3 Mthod and if it fails due to lack of EPA Module open advanced settings and Use the SSV3 -> Forced -> ACPITBL at End Option.
Thank you very much; that's certainly what I'll be doing! Wow, I wasn't expecting someone to reply so quickly