Recent run

On a recent run i got a pick up load of white towers and cords and alot of flat screen monitors.
I also got some all in one towers. I was checking them out to see if i could get them running but alas i only got one power supply with them and they all have the proccesor and harddrive missing. Can i pop one of the ones i have stashed from all the dissambled pc's or do i need a specifc one. Also i got some boxes, they called them switches or servrrs. Not sure but they said they were working. How do i check
Them.
http://i1120.photobucket.com/albums/...04AB929F83.jpg
http://i1120.photobucket.com/albums/...04A82C9EDC.jpg
http://i1120.photobucket.com/albums/...04AE6E616A.jpg

What are these wires
http://i1120.photobucket.com/albums/...049F567196.jpg
http://i1120.photobucket.com/albums/...04A389E7E0.jpg

Check online to see what is compatible for the computer that you have. I am no expert but have asked friends who build computers this same question and i got the same answer. Compatibility is the key here.
upper cord looks like an old dsl cord and the bottom ones I have not seen before good luck!