I'm wildly wrong about what I'm identifying then

It's a piece on the left side of the board, flat black with white letters
KO
477
4k
602
on the original, and on the new ones it's tan with
KO
477
4k
744
I found a Pi 3 and got cgminer running (following instructions on the announcement) all my Pacs, so I'll see what my speeds are like in the morning.
Update: after getting cgminer running for a full 24h on my Pi @ 400MHz for my NewPacs, one is doing 88.4GH/s (normal), the other two are 80 and 77.