Cant boot I get to

No need to reset your BIOS to enter BIOS editing mode.
You'll need a keyboard that plugs directly into the keyboard port, not a USB keyboard. The USB keyboard does not function until later in the boot process and therefore doesn't send the DEL keypress signals when needed at initial boot-up.
Using a direct-plug keyboard, keep tapping the DEL key while your computer is booting up and it should catch the keypress at the appropriate time and enter BIOS editing mode. This way you don't have to get a single keystroke timed precisely to open the BIOS editor. If the computer starts beeping at you, don't worry about that. It's just telling you that you've filled up the keyboard buffer with DEL keypresses which is the intent.
Hope this helps, and please rate my answer.