I have a 2008 24” iMac with a faulty Nvidia 8800GS GPU. I’ve fixed it twice by heating the GPU but I’d like to replace it since that’s not a reliable fix. I’d like to upgrade the GPU but the one it has is the best one the computer came with. I know that other iMac GPUs can be upgraded to ones from gaming laptops but I’ve never seen anyone do a 2008 iMac. Does anyone know of any other GPUs compatible with this iMac other than the 2 it shipped with? I’d prefer at least 2GB of vram but 1GB is still better than the 512MB faulty card I have right now. I know how to flash the vbios so that’s not an issue. Thanks!