that is a barely adequate PSU.
"Cooler Master eXtreme Power Plus 500 W is the perfect example to explain why maximum power isn’t everything. . . . We can’t recommend this power supply, however if you are really on a budget this may be an option until you have money to buy a decent power supply for your PC." http://www.hardwaresecrets.com/article/Cooler-Master-eXtreme-Power-Plus-500-W-Power-Supply-Review/728/10
it will handle it but you really need to get a better quality PSU.