Question x2 PSU for 1 PC (psu dedicated for GPU)

[Naxo556]

Hey,
I have two high-quality PSUs and run multiple GPUs.
I was wondering if it is safe to somehow set up a system so that one PSU is dedicated to running one GPU (4090)?
It is for a workstation that already runs x2 3090 for 3D rendering.
What is the safest way to build such a system? Do I only need this ? (Dual Multi Power Supply Add2psu Adapter - amazon link as an example)
Maybe there are better alternatives?
What if the power shuts down during electricity maintenance etc?

 

[USAFRet]

Please keep this to ONE thread.

Question - x2 PCIE cables for 4090?

Hey, So I read how everyone suggesting using separate PCIE cables for every individual GPU 8Pin slots, but currently, I'm using x2 3090 gpus, each connected by x1 PCIE cable. I'm planning to add 4090 to a system (3D rendering), so wondering if cables won't start a meltdown (lots of fearmongering...

forums.tomshardware.com

Closing this one.