The boards in your second photo appear to fit the description of a dual large socket mother board. Two of the slots near the center of the board appear to hold slot processors and the slot below that appears to be a slot to hold a backplane.
The first board on the left in your first photo may pass as telecom, but it would need to have healthy IC population on the back side. If we could see a photo of the back side of the board, that would be appreciated. Everything else you have I would say is peripheral.
_________________ kgryczan Forum Moderator
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