Great finds!
Quick tip for checking computers without hard drives. Do a google search for linux and download a copy. Ubuntu or one of its variants, Puppy, Knoppix, doesn't matter. Burn the iso to a cd or flashdrive and boot the computer from that. At least you will know if everything else works and many linux distros have good system info programs. Check Boot and run Linux from a USB flash memory stick | USB Pen Drive Linux for info on make a bootable flash drive.
Mike
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