Overclocking GPU past Afterburner

kunstderfugue

Honorable
Mar 12, 2012
77
0
10,660
I have a GTX 650Ti 1GB i've been tinkering with and I've found myself pushing the limits of what Afterburner allows you in the overvoltage / overclocking sliders. Is there a way to increase voltage over the +100mV maximum from the slider?

I'm confident in my ability to cool the card (max temps are about 61C at +100mV and +250MHz core), but should I also be worried about the its physical power limit? It's got a single PCI-E 6-pin connector.