I am building a pc with ryzen3 2200G and msi B450M pro-VDH motherboard.The ram is Gskills ripjaws V 8GB single stick.One 240GB SSD and a 1TB HDD 7.2k RPM from WD.I will try to add add atleast 3 120mm fans in my case for better airflow and a better cpu cooler.I wan't to add a gtx 1060 in future and I'm going to overclock both 1060 and the ryzen 3.When I calculated the psu wattage it was around 338watt. But I doubt if a 450watt psu is enough for my build with overclocking , If not which psu should I buy to satisfy the power requirements considering my budget of Rs.4000 for psu.