Can I use a 12 pin connector connected to the psu and the 2x 8 pin connect to the gpu and then add a mother single 8 pin to the gpu? The evga 3090 use 3x 8pin connector. This is wat I brought.
https://www.bestbuy.com/site/corsair-12-pin-gpu-power-cable-sleeved-black/6437465.p?skuId=6437465
https://www.bestbuy.com/site/corsair-12-pin-gpu-power-cable-sleeved-black/6437465.p?skuId=6437465