I bought a used computer without a graphics card with windows 10 installed. I cannot enter the bios while booting my computer. I press DEL and I have a black screen. If I press F12, I see boot options. I took the battery out for 1 minute and put it back in, shorted the jumper as well and then I got a message whether I want to load the default bios or enter the bios. When I want to enter the bios, I have a black screen again and nothing is happening. I read in a similar topic that it was the fault of the TV to which the computer was connected. I connected to the monitor (I have one year) without a graphics card and with a graphics card and the same.