On the Amazon site >
"REDUCE MOTHERBOARD BURDEN: 4PIN, SATA and Graphic card 6PIN interface are optional to power, which provides Graphic card independent power and reduces motherboard burden when using more Graphic cards"
Have you tried these?
I'm curious as to why I cannot use my GPU connected to a riser with a store bought USB 3.0 Card inserted into the PCIe slot.
Scenario 1: Card works fine with original risers PCIe insert.
Scenario 2: When replacing the original riser PCIe adapter with one that fastens into the case I cannot get my monitor to work.
I didn't believe there was anything special about the small PCIe riser adapter that I plug internally into the computer.
Using this Riser:
Trying to use this PCIe USB 3.0 adapter: