So my PSU is faulty and I need a new one problem is I'm a lil tight on cash so I want to know what's the best under £50 PSU I can get. My specs are CPU: AMD 6100 3.3gHz. GPU: AMD 7770 1GB GDDR5 VRAM. RAM: 16GB DDR3 MOBO:ASUS not sure what model. I need it to be reasonably reliable and cheap thx!