Apple Mac Mini late 2012 model 6,1 (lot of 3)

This is for a lot of 3 Mac minis, one is operational and shown connected to monitor ( monitor is not part of sale). Working mini is running under login I do not know password and will have to be factory reset to bypass.
Other two will boot to utility only. Crash before Home Screen. Most likely bad memory (these are some of the last devices Apple allowed you to swap components). All three are the same model and can be used for parts and sold as-is.