The provided power supply isn't suitable for your motherboard.
The provided power supply isn't suitable for your motherboard.
You're asking if your 4090's power consumption justifies the additional connector on a single GPU.
You're asking about connecting two 8-pin GPUs via a 12VHPWR port and whether it's necessary to supply additional power through the 6-pin motherboard connector for extra PCIe performance.
It should have that adaptor thingie there 2 8 pins convert to that single gimmicky 12 pin which then goes into your gpu. Unless it is some other option i'm not aware of.