BTW OC is the same as TO - rev 2.1 board, just different bios. You can force flash your OC to TO using atiflash -f command.
bam! thanks man

just flashed to that new F62 BIOS(
http://www.techpowerup.com/vgabios/131592/gigabyte-hd7970-3072-121214.html) which was a TO not really knowing the difference I took a chance seeing the default speeds much higher than a OC bios. I tried 1100/1500 which shot to 760plus!!! then crashed to black

Do you crash at 1100? For the night I put it back to 910/1375 and running stable at 640 with a 79temp now instead of 83 before at 1000/1375 OC bios. Going to mess with it more tomorrow so thank you for the confirmation that I am on the right track with going to TO. More trials to come..thanks again!