Noe bought a used eMachines computer from a yard sale and it doesn't work. Leo says there's probably a reason why someone sold the computer. He's got $100 into it now, is there anything else he can do? Leo says to cut his loses. Computers are cheaper all the time. In fact, there will be a $200 computer by the end of the year, but as the saying goes, "you get what you pay for".
The processor could be overheating, or it's not properly seated. Leo says he should just consider it a $100 lesson, and spend money to get a new, working computer.