[SOLVED] Computer turning off after a few seconds and will work normally after

[HinderJinder]

I have a newly bought computer. This past few days it is raining bad and when I try to open my computer it will turn off a couple of seconds after. But will open and work normally after. It happened thrice since the raining starts this week. Is this a PSU problem or electricity problem? I also have an AVR too
SPECS
Motherboard: Gigabyte A320m S2H Rev 1.2
CPU: Ryzen 3 3200g
GPU: Vega 8 Onboard
PSU: Corsair CV450
Case: Fantech CG71
AVR: Panther PVE-500

 

[rgd1101]

probably psu

 

[--SID--]

Wallsocket is grounded?

 

[HinderJinder]

I

Wallsocket is grounded?

I don't think so

 

[HinderJinder]

I

probably psu

It's brand new. Just bought it last Sunday

 

[rgd1101]

new doesn't mean it any good