Quote from: asbator on September 12, 2017, 08:08:08 AM

Running 300W on 75W designed connector seems like terrible idea.

The connector ITSELF is rated for 288 watts - but the WIRING to it out of most power supplies is commonly NOT rated more than perhaps 150-200.

Splitting a 6-pin to a pair of 8-pins is A VERY VERY BAD IDEA.

The connectors on the EVGA G2 1300 POWER SUPPLY aren't wired the same as PCI-E connections - I'm pretty sure they are using 4 pins each for +12v and ground, so those should be able to handle 350 watts or so - given that the PCI-E spec for an 8-pin connector limits it to 150 watts, you should be able to safely run an EVGA-type dual-cable from EACH of those connections on the power supply as long as you don't exceed it's total power capacity.

The PCI-E spec is VERY VERY conservative on avoiding overload on the power connectors.
Don't confuse THAT spec with what the connector ITSELF is actually rated at.