My machine works flawlessly, other than needing a bios battery. Seller was quick to send me a part that he forgot to send with the unit. It's built like a tank! It's a heater in the winter. It only uses about as much power as a top of the line gaming machine. Mine is for work and play. I have a thing for HDD ASMR. I can hear the CPU's making a coil whine type sound, fans blowing, regular techno sqweaks and squawks, HDD's ticking. I love it. I move large zip files from one drive to another and unzip them just for the ASMR. I had to remove that support bracket to fit my MSI Gaming X 12GB RTX 3060. The power cables on the GPU are clear from the side panel if the power cables are bent at a right angle. The Z620 lower section is completely separate from the upper section. I though the GPU might overheat, but I cannot get the GPU above 66°C with anything I try to torture it with. You can see the NVME drive I put in a PCIe X16. This unit will not boot from the NVME, but it makes gaming nice and fast! These machines will be appreciated in the future for what they are / were.