Someone pls help me..

My rig has been running steady. But once in a while, there is power outage in my area for a couple of mins.. I have set the BIOS settings to turn the pc on automatically.. So thats working.. But whats not working is that the Simple mining OS wont boot..

Things I tried

- If a monitor that is ON is connected and after power outage, PC will turn on automatically and simple mining will boot fine
- If a HDMI dummy plug is connected and after power outage, PC will turn on but simple mining OS will NOT boot
- If a monitor that is OFF is connected, after power outage, PC will turn on automatically and simple minING OS will NOT boot

If simple os does not boot (i obviously cant see whats going on since no display is sent).. I usually turn of the PC using the mother board power switch and turn it back on.. This time simple OS will boot with HDMI dummy plug or even a turned off monitor..

Can someone tell me a work around for simple OS to automatically boot in my situation after a power outage?