Good morning all, Like a few others here I didn't check the power requirements before buying the 1080Ti for my Mac Pro 5,1, and have been scrambling to find a solution for powering it which doesn't involve a secondary PSU or overtaxing the 2x6pins. I still have 1 PCIe slot available, and it struck me that since each slot is rated for 75W one ought to be able to hook a blank PCIe card in there and get a 6pin adapter out of it. But I can't find any such cards (Not that big a market I guess - only Macs route everything through the mobo) so thought I'd check with you guys if this has been attempted or if it's a ridiculous idea. If it's just a case of hooking up 6 pins from the PCIe slot to a cable it seems straightforward to etch a card or scavenge a dead PCIe card and solder on connectors. If there needs to be a controller on the card to talk to the mobo to even activate power over PCIe, the idea isn't feasible. Any HW engineers who'd care to enlighten me on this? Cheers!