

The makers of the first dye on chip designs used sewing machines, pressure cookers and even sunlight for exposure to miniaturize circuit designs so my faith in human ingenuity is not easily fluttered, but it would simply be easier to buy a new computer. Of course, anything is possible, but it would require skills and knowledge probably greater than building it all yourself. No graphics card attached to a slot with its own fan and heat sync, just a chip on the board, flanked by RAM. No doubt as a necessary consequence of the streamlined and thin design. The graphics card and its memory are integrated into the motherboard. Looking at the photos posted for the iMac Intel 27" EMC 23 tear down it seems to be negatron on replacing or upgrading the graphics card.
