Welcome to the forums, newcomer!
We're going to need more information. Please include your system's specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Case:
OS: include the version of OS if you're on Windows 10
Also, include the age of the PSU apart from it's make and model. You might want to see if you can boot to BIOS and remain there indefinitely. While there, check and see which BIOS version you're on at the moment.