Question Pc turns off automatically

[DuhRealSaturn]

Hey, hope you guys are having a good day. My pc has started turning off automatically for the past 4-5 days. It trys to automatically restart but can't go past post. Shows different errors everytime and sometimes doesn't turn back on until I turn the power off and back on. Sometimes automatically starts running after being plugged in. What could be the damage? Ram, PSU? MOBO maybe?

 

[rgd1101]

full system spec? include brand and model of the psu

 

[DuhRealSaturn]

full system spec? include brand and model of the psu

MSI rtx 2060
Asus Z390 TuF without wifi
700w thermal take psu
i5 9400f
16 gb 3600 Xpg Ram

 

[dudio]

We need to know the MODEL of your Thermaltake PSU..

 

[DuhRealSaturn]

S

We need to know the MODEL of your Thermaltake PSU..

Smart RGB 700w 80 Plus