https://wccftech.com/nvidia-geforce-rtx-3090-ti-founders-edition-pg136c-pcb-rumor/

NVIDIA seems to be having some trouble with their GeForce RTX 3090 Ti flagship graphics card which has reportedly been hit with a wide range of issues ranging from design to supply. But it looks like the card could be entering its final phase of production once again.

As spotted by Harukaze5719, NVIDIA has recently submitted a new graphics card PCB known as PG136C to the EEC. We know that the NVIDIA GeForce RTX 3090 Founders Edition is based on the PG136 PCB but the new one seems to be a different variant. We don't know what the 'C' stands for but it is very likely that the GeForce RTX 3090 Ti Founders Edition could be utilizing this PCB and based on its publication date over at EEC, which is 7th February, it looks like this could be the final version that will be heading out to retail.