Just wanted to know if it is possible. I will order bigger PSU in a few days. CoolerMaster psu calculater says I need 430w psu with my setup.
You can force to use current PSU as I said above. You need to tweak your card to do mining with your current PSU, but even with tweaking your card, it isn't safe with that PSU wattage.
Yeah, that was a good idea, ordering PSU with more bigger wattage.