|First of all, the new power supply is junk. $18 dollars for a power supply? |
When you changed the power supply did you reconnect the square 4 pin CPU power connector?
Did you buy a retail version of the new CPU? If not, are you still using the original cooler?
Did you properly apply thermal pad or paste?
Check the CPU and system temperatures in real time using HWMonitor. Get HWMonitor from the link below. Post back the results.