Recently I inherited an HP Pavilion Desktop, but the original GPU and M.2 SSD had been removed as well as the hard drive. I have a new and formatted SATA SSD on hand and a USB stick with the Windows 10 install media on it. Whenever I plug in the PC and power it on, the fans turn on and the USB ports supply power. However, I haven’t been able to receive any video signal. I’ve troubleshooted the monitor, VGA ports, and the VGA cord, and they don’t seem to be the issue. I’ve also tried switching the memory sticks around and using only one at a time, and also switching out the coin battery. I’m starting to suspect the issue lies in the missing hardware, but I was hoping that someone could shed some lights on there issue.