My computer keeps abruptly shuting off...

[StrangleHold]

Show the Memory tab in CPUz. The SPD tab just shows what setting the memory can run at, not what its actually running at.

Plus install PC Wizard and show the Voltage/Temp/fans tab.

 

[Thanatos]

do I have to? It's working fine now. and has been.

 

[StrangleHold]

If its running fine now your good to go.