5090s and new PSU?

Hi all,

So I am building a new rig in the next couple of weeks with an Astral 5090 and a Montech Titan PLA 1200W. I note these two things because I am aware of all the new surrounding melting GPU power cables.

The PSU I am using is brand new and I will also be using a 12V-2X6 cable. Do we know if these factors make it less likely I will run into melting issues?

Thanks for reading!