Hi, I would like to power 2 msi rtx 3090 suprim x with xilence performance x 1250w separately. Motherboard and other parts will be powered with another psu. Will xilence be enough to power those 2 gpus?
No. Two of those GPUs needs 6 PCI-e connectors and your PSU only has 4 on 2 daisy chained cables. Such high-end GPUs you want to connect with seperate cables on each socket so in fact you need 6 cables. If you can get 4 seperate cables for your PSU you should be fine.