Yesterday I got the idea of disabling my external GT 520, and overclock my GeForce 9300 IGP. I can't seem to get it to work properly, though. After starting up Windows the screen just remains black. I've tried quite a lot of setups in my BIOS, but nothing works. Using default settings doesn't work either, it just reverts back to my older external card setup.
I don't know what to do anymore. I think there is more OC performance to get from9300 than from a GT520. Can anyone tell me to chosse the right settings or give me advice about the true potentials of these GPU's?