Hello, I bought a second GTX 960 Asus Strix 2GB card off someone from offerup for 45$. I bought it thinking it was 4GB, in fact, he told me it was, my plan was SLI so I could boost my frames for a bit. However, windows does not give you an option to SLI cards with different VRAM. is it possible at all to pull it off? at all custom BIOS anything. any help is appreciated. :)