Hello,
this week my procesor died and I swapped it for same one (i5 6500) in between I performe cmos clear. Before the swap and cmos clear PC would boot without monitor. Now after the change it wont boot unless I plug in montor. I looked in bios for some settings but I did not find anything that would enabled.
I know that I can get hdmi dummy plug, but I would prefer to do it without (especialy because it worked before).
I am using biostar TB250-BTC+ motherboard
Motherboard manuals