I was just looking at the disassembly pictures from kodawarisan.com and I noticed that the logic board has a mini pci-e slot. The copper pipes are mounted on it so I know it has to be the graphics processor. Has anyone spotted this before?
Link: http://www.kodawarisan.com/imac_2007_mid/imac_2007_mid_02.html
http://www.kodawarisan.com/imac_2007_mid/DSC_3843.JPG
Link: http://www.kodawarisan.com/imac_2007_mid/imac_2007_mid_02.html
http://www.kodawarisan.com/imac_2007_mid/DSC_3843.JPG