Ordered 2 of these for the office. One was rarely used. After a year There were a few shutdowns due to overheating. I blew outthe unit with air and made sure th fans were all running. Next shutdown, the mobo was fried. Computer shop said its because there was only about 50% of the thermal compund paste present over the processor to hear dissipater. Swapped the HD with the second unit and had the shop re-do the thermal compound (sure enough, the second computer lacked a sufficient amount as well).Lesson learned.