RX580 Restarts when playing games.

[onikamaraj1122]

When I play somewhat demanding games my computer will restart. It didn't used to though, so I'm not sure what the issue is.

System specs:

CPU: AMD Ryzen 5 1400
GPU: AMD MSI Radeon RX 580
MB: MSI B350M BAZOOKA (MS-7A38)

 

[norcalsc]

power supply? model and wattage

 

[onikamaraj1122]

power supply? model and wattage

EVGA Bronze Certified 450w Power Supply