Hey @Mizz thanks for the tips! One problem, it does not seem so easy to find the original VBIOS for this card. I can find the one for SLI but not for single 750m . For example, svl7 posts this vBios mod but it's for the ultra bay / SLI only: http://forum.techinferno.com/lenovo-ibm/4668-lenovo-y410p-y510p-unlocked-bios-wlan-whitelist-mod-vbios-mod.html#post65200 Lenovo makes a new vbios available but again I assume this is just for SLI: NVIDIA GeForce GT750M Second VGA BIOS Update for Windows 8.1 (64-bit) - IdeaPad Y410p, Y510p - Lenovo Support (US) And it looks like I'm not the only one who's looking for the original vbios for this chip: looking for official BIOS v1.09 or 1.10 for y510p with 750m GPU If someone has a Y510p with single 750M and stock vbios, could you do a big favor by using GPUz to extract it and then upload/make available for download here. Thanks !