Got a few odd boards to check for class. 1,2,4 guessing midgrade but has ic? Also on 6 would those go as connectors?

Here's my guess:

1) Midgrade
2) Low Grade Peripheral
3) High Grade Peripheral
4) Low Grade
5) Depends on the back
6) Low Grade Peripheral

Back of 5

If 5 came off of a hard drive, then it should be a hard drive board.

Yeah, I was guessing that it came off of a hard drive. So that's were I would put it.

Thx guys.