You may be wondering why i'm asking this... well its because I am trying to expose the heatsink to a little external fan mod i'm making in my imac g5 (overheating problem; I'll post my method later). I got the "G5" "cover" off fine but there is another metal cover over the heatsink that I can't figure out how the heck to remove. It almost looks like it is surrounded by "spring" type holders, as well as special silver tape. It also feels like i'm tugging the whole processor/heatsink unit when I (gently) try to pry it off. Anyone have experience removing this sort of thing?