Look under "Available Graphics" at https://www.hp.com/us-en/shop/mdp/business-solutions/z440-workstation https://www.hp.com/us-en/shop/mdp/business-solutions/z

Look under "Available Graphics" at https://www.hp.com/us-en/shop/mdp/business-solutions/z440-workstation https://www.hp.com/us-en/shop/mdp/business-solutions/z440-wo... No integrated graphics. Author's explanation of the problem: The Teslas are intended to crunch numbers, not to play video games with. Consequently, they don't have any ports to connect a monitor to. The BIOS of the HP Z440 does not like this. It refuses to boot if there is no way to output a video signal.