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What do these fall under on the E-scrap price list?

1) CPU - Gold Stud - Ceramic - gold caps on top and bottom
2) CPU - Gold stud - green fiber - Ultra Sparc (no pins)
3) CPU - Gold Stud - black ceramic - with gold pins
4) Are these "LSI, NEC, Foreign Gold Cap?" I Might be able to remove the round metal cap off the second CPU.
5) Which category do ceramic optical SBUs fit into? Is that what you call these? I'm assuming they are high-grade peripheral if left on the board, what what if it is removed from the board? I can remove it without damaging it with my iron.
THANKS!