What happen when PC doesn't have enough power?

[Ya_Mi]

So what happen when say your CPU and GPU needs 500Watts of power but your PSU can only supply say 450W for example, will your PC just going to underperform or it will trigger the Over Power Protection on the PSU and shut-down your system?

[danomicar]

1 minute ago, Ya_Mi said:

So what happen when say your CPU and GPU needs 500Watts of power but your PSU can only supply say 450W for example, will your PC just going to underperform or it will trigger the Over Power Protection on the PSU and shut-down your system?

The powersupply will just trip and you system will shutoff with no warning. You'll have to turn your PSU on and off again to restart. It's a pain in the ass.

 

If it's a really poor quality power supply you could potentially brick a component as well.

 

 

[WoodenMarker]

Yes, it should turn off. 

 

Moved to Cases and Power Supplies.