|"I may try getting a new case and psu"|
It would be helpful to list your specs. And why would you run out & buy a case & PSU? I know we've had our PSU discussions before so you should realize by now the the PSU is THE most important hardware item in the case. It doesn't mater which board, CPU, RAM, video, etc you have...if the PSU is garbage, the whole system is garbage.
When you say "new case and psu", I hope you don't mean a combo package? Most of the PSUs that come packaged with a case are low end junk, unless you plan on paying $100+ for the combo? Even so, you still need to know what to look for.
The following thread morphs into a PSU discussion at response 9: