Ok so I got a flashed MSI r7970 2PMD3GD5 for my Mac Pro 5,1. I've installed it and it runs perfect. Boot screens, PCI 2.0, all ports. Etc. As some of you may know the card requires a 6 pin and 8 pin power connectors. I have this installed with a mini PCIe 6pin to 8 pin cable (not an adapter) and it all works. I run Luxmark, openwave, all those benchmarking tools and have no problems. No shutdowns, glitches, nothing. Fans all work and the expansion Hovers around 900 at idle. So why do I bother to say this or post? I know the whole 150w vs 75w thing and the tracers possibly burning out and stuff. I've read all those threads on here. But I've had an idea that I'm not sure will work and maybe some of you can help me if you have already tried, or know better. Can I do the following cabling to achieve a load distribution amoungst both motherboard PCIe plugs? Dual 6 pin mini PCIe > single 8 pin PCIe > single 6 pin & single 8 pin (or 6+2) ?? So my thought is by bridging both supplying connections this way, the card will receive the full power, and when the card needs more power and pulls from the 8 pin it will be load distributed among the 2 6 pins on the Motherboard. Makes sense? Maybe the wattage would be to high for the bottleneck at the single 8 pin? I figured if I'm going to pull more than 75w on a single mini 6 pin I rather they both share the load. Let me know what you guys think. Another option would be to mod the card to accept the 2 6 pin connectors, but so far I have only seen MacVidCards offer this. I have no idea what this requires or what is done. And I fully understand why he wouldn't want to publicize what he mods. Duh. It's a business. I own one. I know what's it's like. Thanks guys.