My professor didn't even have an answer besides try start the system with no memory in it to see if it POSTS.
What an absolute wanker!!!................nah! he has doubtless lost the instructions!!!

You have all those people in class with the same kit?.............it is only a 5 minute job to swap out your memory into one of those to see if the memory is OK?

Then it is the case and MoBo that are stuffed............. send them back!, at their expense of course...........some bugger is making a tidy profit out of doing business with your "professor" and I am sure you are big enough to imagine the rest? They should just send you new ones

I am, of course assuming that you didn't all go and find the same kit by accident?