Why does my computer sometimes suddenly go black and restart?

My pc sometimes suddenly go black and restart without any signal.

Idk why

I read the Event Viewer and I just find this

- <Event xmlns="http://schemas.microsoft.com/win/2004/08...>

- <System>

<Provider Name="EventLog" />

<EventID Qualifiers="32768">6008</EventID>

<Version>0</Version>

<Level>2</Level>

<Task>0</Task>

<Opcode>0</Opcode>

<Keywords>0x80000000000000</Keywords>

<TimeCreated SystemTime="2025-03-19T02:11:34.7981264Z" />

<EventRecordID>536853</EventRecordID>

<Correlation />

<Execution ProcessID="0" ThreadID="0" />

<Channel>System</Channel>

<Computer>*****</Computer>

<Security />

</System>

- <EventData>

<Data>上午 09:55:03</Data>

<Data>‎2025/‎3/‎19</Data>

<Data />

<Data />

<Data>2413</Data>

<Data />

<Data />

<Binary>*****</Binary> (I don't know if this is sensitive information.)

</EventData>

</Event>