Computer keeps shutting down when burning Dvd and playing Roblox

[mo7]

Whenever I burn a DVD of videos my computer shuts down immediacies, or a few times when Roblox is being played maybe it uses lots of graphics? I was told to clean the Cpu fan will get someone to do that but could it be something else?

 

[FuturDreamz]

Is it possible your power supply can't handle the strain of burning a disk?

Is this a system you built yourself? Or that you added a graphics card to?