If I want to overclock my FX 8350 with a R9 290 card, is a 630W power supply enough? Will the power supply be able handle the overclocked processor and the gpu at full load? Or should I consider upgrading my power supply for more wattage?
What PSU do you have exactly ? If it's a good PSu than you should have enough. Search for your parts online and add up the watts you can find and see for yourself. If it gets close then dont overclock yet.