Question MSI B450 Tomahawk Max - red cpu light crash

[w8t4s]

My system specs are:
Gigabyte Aorus 2060S
MSI B450 Tomahawk Max
GSKILL 2X8GB Trident Z RGB 3600mhz CL16
AMD Ryzen 3600x
CoolerMaster 750w White Psu 80+
-
System status right before crash (recorded with flv extension):

Video:
https://streamable.com/n6f7lh

Any ideas what causing this? btw i didn't build the pc myself, bought it from a store.

 

[Lutfij]

Disconnect from the wall, remove the CMOS battery and in the process make sure that all connections are properly secured in their connection housing.

You will need to specify the CoolerMaster PSU. Is it this unit?

 

[w8t4s]

@Lutfij psu is this:
COOLER MASTER MWE WHITE 750W 80+ 120mm
MPE-7501-ACABW-EU

I can't really touch the parts of computer, actually never assembled one. I guess my only choice is sending it back to them for fixing .