Help with a P7H55-M SI DSDT

will the dsdt for the P7H55-M work with the P7H55-m SI?

would there be any way to get a dsdt for this board as it isn't in the database and i would have no idea how to do this myself.

would that help as I can only output sound from 1 port and I cant Sleep it either, other than that the system is stable, Graphics card shows as AMD Radeon HD 7xxx 3072 MB, it's a 7950.

So I found a DSDT for this P7H55-M SI on the forum, by board and Bios version so this should work, but when i drop this into my Extras folder my system wont boot, just stalls on waiting for root device, tried loading defaults in bios and the only setting i changed was AHCI, am i missing something?

please help!