when you are using risers - those cheap ones are VERY fickle ... unless using pcie x16 risers - you will NOT get the full power of the 'on board power' which is supplied by the motherboard ...
#crysx
#crysx
I alter the bios to only use pci-e 1x and save some power. Most of my riser cables are cheap, but I have some expensive cables as well. When using less money on the boards and the risers, I have more money for the cards
According to pci express specifications, both x16 and x1 cards ca ask up to 75W of power (only the initial power is different).
Also the power pins are all on the x1 part.