Help... undervolted 7970m to 9.50v, from 9.75v, and now the screen won't turn on.

[ServusFidelis]

I used atiflash to undervolt my card to 9.75, with slv7's bios (and it worked great (thanks slv7) for reducing temps but i still had what i believe were throttling issues since bf4 fps was bouncing all over the place) but then i wanted to undervolt it further to get even better temps and because i ignorantly though maybe it would stop the fps bouncing on bf4.... lo and behold now the screen won't come on anymore after that. I believe i undervolted it to far. Is there a way i can get the card back up to 9.75 or the default factory setting or am i stuck with the old 260m again? Help would be MUCH appreciated. Thanks!

cpu i7-940 es

7970m (reverted back to the 260m until i can fix the 7970m)

8gb ram

[ServusFidelis]

Well I have looked into this and will give an answer to my own question for those interested...... Had to buy another vbios chip, and will need to solder it on with a hot air gun. The chip cost about 20 dollars.

[mike2668]

or just try blind flashing it......