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Please help me grade these boards

1- MAYBE peripheral, only because IC population and how small board is but most likely mid grade. If opt, remove ICs, toss in low grade.

2- low grade, remove the bigger ICs if opt too. (STK4392 is an IC *fyi*)

3- MAYBE mid grade as is but you'll probably have to remove the AL heat spreaders, if so, low grade

4- low grade

Midgrade
Low
Low
Low.

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2- low grade, remove the bigger ICs if opt too. (STK4392 is an IC *fyi*)

How can you tell that is IC chip? Is it sellable as is or do you need to pull the plastic cover off?

You need to pop it out of the shell. It’s actually a glass or organic fibre PCB to be technically accurate depending on the design and if you get the metal backing removed these go from peripheral to IC. As is it’s midgrade

Identification vs terminology get confusing from time to time.
Technically accurate would be to say most of what Chris buys as IC is actually either ICC, integrated circuit carrier; or ICP, integrated circuit package, not the clowns.
A package holds one or more ICs. A carrier holds one or more packages. A completed package is a chip. And a package with multiple chips is a multi chip carrier. Multiple MCCs on a size matched board is a carrier package, or board if it uses balls or pins. And a chip riser if it uses a “finger” connector. A slot processor is technically a chip riser. As is ram.
Hacking fun:
Multiple risers on a socketed board makes a farm.
A farm in a dedicated box (eg GPUs or RAM) is a barn.
Barns are dependent on an external computer.
Multiple barns makes a neighbourhood. (Which is where the networking term ‘neighbourhood search’ comes from for LAN setup, hopping).

Not that anyone asked for any of this. Just having some back of my mind fun today.

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Thats quite interesting.....thats the very reason I ask some of the questions that I ask. That was a bit more of an explanation than I was expecting, but it was very helpful too.

Sometimes I just spew because I can. Lol

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I can go with this all day long.
Multiple neighbourhoods make a city. Multiple Network cities make nodes. Multiple nodes make clusters.
Multiple clusters make a dedicated cluster, which may or may not be a cloud cluster.
Multiple dedicated clusters make a mine.
And now we get confusing. Multiple mines makes a distributed cluster. Multiple distributed clusters (in a single location) makes a mainframe. Multiple mainframes (in the same location) makes a node. Multiple nodes make a singularity. Multiple singularities makes a computer. Multiple computers makes a network. Multiple networks makes...!

I had a professor who I still consider a close friend. He was a bit nutz and says so himself. But long before the matrix was a thing he talked about how one can get so lost in terminology that you never know which way is up. After a chance engagement where he replied stating I was a “fount of useless knowledge” he took me under his wing to push my need for understanding into actual understanding.
At the same time I learned that terminology without context is pointless.
Take MCC
Multi chip carrier
Monolithic ceramic capacitor
McDonald’s Cesar classic
Metropolitan city centre.
...!

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Experience from reading boards and viewing the same components over n over, you get the hang of things, ha ha.

ANSI/IEEE standard is a nice table to look at while trying to figure out what's what on a pcb or computer board. Not everything completely follows or translates exactly, but after seeing how different companies and engineers label things, it's relatively close from item to item or for each component.

EX: Resistors = R Capacitors = C Integrated Circuit = IC/U LEDs = D(diode) etc. etc.

Once you can read a PCB, it's much easier to identify items and know what specific items do or execute.