Got 3 HP Proliant DL365 G1 for really, really cheap. Can I run Hyper-v or ESXI?

Title. I got them for really cheap, including the rack, and I was thinking of setting them to virtualize stuff for home use and for some labs. First I tried to install Windows Server 2019 (I have MSDN Subscription so licenses are ok), got an error. Then Every single image (Windows Servers from 2003 to 2019, Ubuntu Server latest, EXSI from 5.5 and upwards) I tried to boot up from, getting the same error (Ilegal Opcode).

Since these servers are really old, do any of you remember what can I run? Do I need to do special stuff that a guy like me with only PCs have never done?