I want to upgrade my old pc since I am struggling to play some games at a decent level. I 'm thiking about keeping my case, hdd, psu, gpu (7750) and ofc mouse, keyboard and screen. The problem, is that I don't know whether my psu (liteon 300 w, 120w at 3.3 and 5v rails 260w at 12v rails), will be able to support a new system, including an i-5 4440, h87 m-e asus mobo, mushkin 1600 8 gb and a 120 samsung ssd. I'm willing to listen to any alternatives, thanks in advance!