Question need help with motherboard connector

The 8 pin is standard CPU power. The 6 pin, is PCIe supplemental power. But considering that no manufacturer is listed, I would be concerned about drivers and BIOS support. IF there were a manufacturer listed, you could go find the manual on-line. With the brand of "Unbranded", you are on your own for any info or support.
 
The 8 pin is standard CPU power. The 6 pin, is PCIe supplemental power. But considering that no manufacturer is listed, I would be concerned about drivers and BIOS support. IF there were a manufacturer listed, you could go find the manual on-line. With the brand of "Unbranded", you are on your own for any info or support.
is the 6pin needed or optional and thanks for reply