Random power loss,then boot loop

[Total Epicnessᴭᴺ]

My computer that I have built has begun to experience some problems within a month of its assembly. It used to run benchmarks with flying colors and decent temps,Now when It boots into the OS,the motherboard can loose power at anytime whether it be 10 seconds within booting or 15 minutes, No error codes on next bootup or beeps from case speaker. It does not seem to occur under load because I was able to run a couple games before it shutdown again and I have seen it shutdown while idle. Here is what I did and the success I had.

-Reseated the RAM (The computer just boot looped before I reseated the ram, so It did help.)

-Cleared CMOS by extracting the battery for 30 seconds.

Specs:https://pcpartpicker.com/list/DrTvtJ

-Unplugging motherboard power and putting it back in.

-Cleaned PSU.

-Rebuilt the computer

The computer still has good temps,so It is not a temp issue.