I bought an opteron 146 on the 1st of November and Im sure it is faulty. For a few weeks ive been getting increasingly numerous random blue screens with error message Machine_check_exception, ive swapped most of the other parts with others with no change but yesterday i have borrowed my friends opteron 146 and Ive not had one error - I usually get blue screen every half hour. I know these retail versions carry a 3 year warranty, do i take it back to the shop or do I have to return it to AMD ? Also as you dont have them in stock anymore what will happen ?