A friend of mine has decided to build a similar desktop pc as me (i have another thread listing my planned parts) instead of buying the Antec-VP450 power supply, he bought the X-Finity Ultra 600 Power Supply at a recycling center for 5 dollars. He tested it with a power supply tester and all the lights lit green and fine when the instructions were followed. however, due to its acquisition in a recycling center where things are supposedly not working or malfunctioning it raises some doubts. What possible risks are present in this type of situation?
He plans to use:
EVGA GTX 260
Elite Team 4gb RAM
500gb Hitachi DeskStar
X-Finity Ultra 600 Power Supply