So, I am hoping you guys know the answer to this question because I can't seem to get a straight story from manufacturers or online vendors. Are the MSI 4G GTX 680M & the Clevo 4G GTX 680M both usable in the ClevoP170EM without requiring any BIOS mods? I already know that the 2G Dell GTX 680M is definitely not. I asked Sager and one vendor and I was told NO, they have different adapters. I have also been told by multiple Taiwanese vendors that they both are compatible in the P170EM. Someone is clearly not telling the truth here... anybody with a definitive answer to this?