Need old Dell XPS 8930 CPU bios for O.C .

Long story short I was able to overclock this PC's cpu ( i7 8700 non k ) to a higher 4 mhz many years ago with XTU intel software. However with yearly bios updates ; XTU lost functionality . At first options became grayed out and ultimately Advanced options tab no longer display information at all .

I have long since forgotten all steps to overclocking this cpu . What little I remember is searching endlessly through the internet for bios, maybe bios given for other XPS models . Flashing bios and installing a different version.

Many years have past, so I have to track down these old bios. But where. many of the pages I remember from the past no longer exist . Any help achieving this once again is appreciated.