[Request] Dell Inspiron 14R SE 7420

I have an old Inspiron 7420 that I would like to change the power settings for but the bios won't allow me. So now i'm wondering if someone can help me mod the bios?

Version A19, A19


Here is the link for the bios download

http://www.dell.com/support/home/us/en/0...erId=VPGMG