Hey guys I 'm having a bit of an issue with a PC that I 've installed Proxmox on

[G+_Dallas Traina]

Hey guys I'm having a bit of an issue with a PC that I've installed Proxmox on. After installation and reboot this happens...see video, my monitors then show "no signal" and do nothing.This didn't just happen with Proxmox but with Ubuntu and Linux Mint as well. This is a quad Core AMD with 8 gigs RAM approx 5 years old. Any advice???