This mobo also been flash successfully which i modded it before though it work with SSV method but should SSV3 will work also.. IF you only activating windows7, you don't need SLP unless your using dual system with XP. Ok, Try to clear CMOS and set bios setting by default, if doesn't work try to reflash your bios by this command: Like this: Recommended Usage Info from yen. Afudos /ixxxx.rom xxxx.rom is your modified bios. (Program main BIOS image) Afudos /ixxxx.rom /pbnc /n xxxx.rom is your modified bios. (Programs main BIOS image & bootblock image and resets CMOS and NVRAM to defaults) Try that first with NO switches and see what happens, then if that fails to update the RSDT again try using the switches listed above. Also don't forget the little "i" in the command. Make sure you clear CMOS and reset BIOS defaults after each flash. And MAKE SURE YOU HAVE A RECOVERY METHOD READY !!! EDIT: