The major problem the computer came with is a broken M.2 connector (check photo). I installed an NVM2 drive in the slot and it was not recognized due to the broken connector.Another issue was with the BIOS battery. Whenever the computer was disconnected from electricity, I kept getting an error message on boot that the BIOS was reset. The main culprit here is an empty BIOS battery.I wonder how two issues like were not noticed during refurbishment.Other less serious issues: the computer came with a completely loose screw in addition to other missing ones. For example, one fan has only 1 screw instead of 3.