You should be allright with the PSU you have, Your system would drain about 250-270 watts from the PSU. but you need to know that it is always good to have a PSU with around 100W headroom or so. If you have the GTX 1050 in your system, and it doesen't get to full power, consider uppgrading your PSU to one with around 430-500 Watts or higher. Also the PSU in your system is probably not the most reliable one, so just a heads up.