I've purchased quite a few of these HP EliteDesk, different generations, different processors. I have never received a bigger piece of trash than the system from this vendor. Lets start, the packing was paltry, wrapped it two sheets of paper in a box barely enough to fit the system and its power cord. Second, a protrusion on the back left side was hanging on by a wire. Third, the system wouldn't boot. As soon as the power cable was plugged in I received a beep count - 3 slow 4 quick. Considering the lack of proper packaging I thought something came loose. Third, I re-seated the memory, ram and processor. I also noticed that the CPU fan never turned, not even a budge.  I tried another fan, didn't budge.After researching, I learned that the beep count indicated an issue with the motherboard receiving power. I tried another power cable/brick, didn't help.I'm getting a replacement. Still, this throws off my project, wastes time I really didn't have, and decimates my confidence in Amazon vetting its vendors to assure some standard of quality control. I do hope this is the exception to the norm but lately I'm not so sure.