I'd like to upgrade my Aurora R15 with a 5090FE card. I have installed a 1350w PSU:

It has 5 GFX power ports: GFX1 (8PIN), GFX2 (6PIN), GFX3 (8PIN), GFX4 (6PIN), GFX5 (12 + 4PIN).

there's also the NVIDIA 12+4 PIN male to 4 * 8 PIN female cable that comes with the card:

How should I connect them correctly?

I am thinking to buy a 12VHPWR 16 Pin Female to Dual 8 Pin(6+2) Male PCIe Conversion GPU Power Cable, then connect the GFX5 to it to further connect to 2 * 8 pin female sockets on the Nvidia cable, then GFX1, GFX3 to the rest 2 * 8 pin sockets. Not sure if that's correct. ChatGPT doubts the cable would work. It says "the cable is a Standard ATX 12VHPWR / 12V-2×6 female cable while my PSU GFX5 port is Dell proprietary 12+4 GPU power port. They look similar, but they are not wired the same internally." But when I ask it to pick a correct cable for me, it answers with links to a few similar cables.

Thank you for your advice.