Ok, so here's my situation. I'm getting a build that was used in office for some time. I'm not 100% sure about the specs, all I know is that it has i5-2400, 4GB RAM and 500GB HDD ... also it's Micro ATX motherboard I will be getting HD 7790 for it. And it definitely needs new PSU and I'm pretty short on my budget.
Some of the PSUs in my budget range that are available in my country are: Corsair CX430 Corsair VS550 Zalman ZM500-GS Enermax NAXN ENP500AGT Cooler Master B500 FSP HEXA 500W
I did some research, however I'm not 100% sure which one of these would be best.