hi all just turned on my pc and loaded it up fine when it turned itself off and won't come back on again. my psu fans been making a buzzing noise lately but a well placed smack seemed to shut it up. now when i turn it on it tries to spin the fan but dies. got power to the motherboard, theres some dust on the fan but it spins easy enough when i push it manually. guessing the buzz was its screams for help and its now dead? got no other pc to try the psu from ether. so what i'd like is a rough idea if investing in a new psu would be the solution and if so which one coz i'm broke!