The HP ProDesk 600 G1 I received would not output video through any of the video connectors and the HDD (not an SSD) would occasionally make some very loud clicking/snapping noises for several seconds. We tried both DisplayPorts and the VGA connector but we could not get anything to show up on a known-good monitor. If everything had worked this would have been a great little PC for a shop or garage, or even daily use. Note that this processor came out almost 10 years ago; I opted to  spend a little more and get a new mini PC with more modern hardware (a BMAX B4).