Hello, I have a stock non moded Msi Gt683dx with gtx570m and I want to upgrade it to some new gpu mostly gxt970m. Is it even possible? As far I understood I have to flash moded bios and modify my heatsink. But what should i do if i buy Clevo gpu. Is it necessary to flash it with msi vbios and it will work, or it is impossible to use clevo card insted of MSI? thx for help