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Need help identifying these boards

First photo (9 boards in photo)
Top right and middle right are CD/DVD boards. Middle right board appears to be from a SATA CD/DVD drive.
Bottom right appears to be mid grade. Don't see too many ICs on it and there's too much junk on it for it to make peripheral.
All other boards are peripheral

Second photo (two boards)
Top board is a CD/DVD board (good sized one too). I can tell this by the IDE connector on the end.
Bottom is peripheral

Third photo: low grade. Brown board and too many power components to make it go any higher than that.

Fourth photo: Mid grade if green on both sides. Too many power components and very few ICs. I'm guessing this came out of a printer.

Fifth photo: I believe this falls into low grade telco. Lostinlodos could confirm it better than I could. There's a lot of power components, but you have good IC density across the board in between. The sockets on the end that plug into the backplane could possibly have some gold in them.