Graphic card responds late after boot.

red000

Prominent
Jun 29, 2017
7
0
510
Hey guys. everything was fine a few weeks ago but lately I'm having a little problem.
weeks ago, whenever I push the power button, the lights and fans were start to work, then a little noise from hard drive I believe, then a single beep and my monitor show me the bios or windows loading page almost immediately.
now after re installing my windows, that beep takes a lot longer to be heard, and after that my monitor goes in standby or blank, and after about 5-6 second, my monitor shows me windows loading page. sometimes I have to on/off monitor, and sometimes I even have to restart because it remains in stand by mode.
when I restart, everything's just fine. it only happens whenever I start the system by using the power button form fully off mode.

I've updated my bios, gpu's bios, updated other drivers and nothing...
where do you think the problem is from?