i have an acer aspire 5920g with a 8600M GS, is it possible to upgrade to the 8600M GT (if not ill just replace the GS as its not working) and if so do you know of any where that will sell these.
I don't know it is possible to upgrade GPU in Aspire. In some Dell, it is possible. ebay has lot of MGPU. You could try selling it there. Also if it is possible to upgrade, why go for 8600GT.. better get some 9 series card like 9800GT.
well if you can upgrade (aka you have an MXM slot) i would find the best card that is compatible with your MXM slot revision (different revisions, different cards)
though you might have to worry about heat, the new card may produce more heat than the old one and your laptop cooler may not be able to cool it good enough