Asus S510UN black screen after bios

Hi everybody, I'm using my laptop with hackintosh Majove with framebuffer patch and multimonitor setup. However today I need to format my laptop to windows. I made a USB for windows installation and power off my system. Then press F2( my bios key) to access bios and change boot priority. However, after I pressed F2 I stuck on black screen without any cursor or underline. Just black screen, keyboard lights on. I cannot access boot options therefore I cannot format my computer. What can I do? When I do research some people said that this problem maybe about your monitor and display. I can open mac without any problem. Is there any way to format this computer without enter bios or what can I do to enter bios. Maybe remove framebuffer patches is worked but I don't know how to remove it.

submitted by /u/muratangin187
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