Absolute garbage PC's. This is the SECOND one that doesn't work! #1 squeals when plugged in..#2 replacement I just got, won't stay powered up. Stay away from this company. They may be polite but the QA dept sends out untested units. I asked rep (Loki) to make sure it's tested before sending out...obviously not. He had me remove neg. feedback. You're wasting my time!! I want a FULL REFUND!!