Motion Blur crashing entire PC - full shutdown

[fullyspooled]

I just built a new computer with an Intel i9 14900k processor, Z790 motherboard, 64GB of DDR5 RAM, Nvidia GeForce RTX 3060 Ti, full liquid cooling, etc. Everything benchtests well and the computer is extremely stable unless I am working with blurs in After Effects 2025.

Any time I apply Camera Lens Blur or even regular motion blur to a layer, the computer just comletely turns off without warning. It ONLY happens when using specific blurs. Fast Blur seems to be fine, as well as gaussian blur. So far it's just camera lens blur and adding regular motion blur to a moving layer. Everything else on the computer, from games to Premiere, works totally fine.

I turned off hardware acceleration. All drivers for the computer and related components have the latest updated drivers, etc.

Is anyone else having this issue? It seems like there's something wrong with After Effects, but I'd happily take any advice. I do not have this issue on my Macbook Pro, only on my Windows PC.

Thanks

[jenkmeister]

I'd start with making sure your power supply is sufficient to cover the equipment in your PC. If the machine is turning off, that sounds like the computer is trying to protect itself from a power surge. 

[fullyspooled]

Thanks for the reply. I have a Seasonic Platinum1000w power supply. I should be well within the limits of the power supply as the estimated power draw is around 633w. I also put the computer through extensive CPU and GPU benchmarking and had no problems with the power shutting off. 

[fullyspooled · Accepted solution]

Just to follow up for anyone searching in the future. My PSU was indeed bad. I bought a new PSU and my issue is gone. Check your power!

Thanks