I'm building a compact computer to drive a powerful GPU.
Many flagship video cards currently have two 8-pin PCIe power jacks (even though reference design nVIDIA 1080 Ti Founders Edition has 8+6 pins).
My tiny SFX power supply, on the other hand, has only one 8-pin PCIe power socket with two others being, apparently, 6-pin PCIe power sockets. The manual of this PSU claims that it "supports dual PCI-E 8/6pin connectors".
However, my power supply is quite powerful and is able to continuously deliver 50A on a 12V rail (600W), while the video cards require only about 250W.
The question is, is it possible to power such 8+8 pins GPU with my 8+6+6 pins power supply delivering all the 250W it needs? And how to do it?
UPDATE: Those two 6-pin sockets on my PSU turned out to be actually for powering IDE & SATA (that is hard drives and other peripherals). So there is only one PCIe power socket.