What are the risks of changing the vbios on a asus G751JT-CH71 (GTX 970m 3gb)? Previously I had a desktop that had a GTX 660 and I tried to change it's vbios and resulted in the card not being read by windows but since then I have changed its vbios to its original and works fine. Now I have tried overclocking my card (GTX 970m 3gb) and it worked perfectly with a slight fps boost but I feel like the card can handle more +135 on core isnt much, I have read on other sites that it exists a modded vbios that increases the amount you can add but before so I would like to know the chances of its success and if it really gives a boost that's significant and worth it.
