296.10 WHQL Are now available and seem to work well for me. Might be worth giving them try.
3 series MIVE, MIVG BIOS FLASH GUIDE
RAID GUIDE * Memtest86+ GUIDE * CAP GUIDE * USB BIOS Flahsback GUIDE * Win8 Rampage Install
ONLY IF 2003 BIOS or NEWER
To Flash back to 1xxx.ROM, Rename 1xxx.rom to ERALL.ROM and Use USB Flashback