CPU 8 pin is not GPU 8 pin. EPS 12V is NOT AUX PCI-E and has no sense lines to adjust the voltage accordingly based on load.  PIN4 is keyed to prevent using it but Gorillas have been known to FORCE it in anyway causing motherboard fire and frying everything. Doubling up connectors DOES NOT make your 600W power supply into an 825W unit RHHKV / K61PK [IMAGE]825w proprietary power supply [IMAGE]The spec is clear[IMAGE]75W from slot 300W from 2X 8 pin   [IMAGE]These are not the same  
I'm investigating solutions on how to properly drive a 2*8pin GPU on a Dell Precision T3610, which only can supply 1*8pin PCIe on its power distribution board. PCIe supplies around 70W, 8pin supplies 150W, and I need to find another 75W to get along with 300W.  [IMAGE] I can get a 685W PSU which should be enough to power all these; the problem just lies in wiring.  In the meantime, its sibling, Dell Precision T5610, comes with a power distribution board like this: [IMAGE] My bet is that the layout of the 24pin should be the same and connecting the two won't fry both, since the 3610's manual is showing 5610's power distribution board, and they came out at the same time; it will be weird if sibling models don't share designs. (as shown in the pictures the 24-pin plugs are exactly the same. Also there are Russians listing their motherboard plug designations together, [URL] As you can see the 5610's board has two EPS slots since by design it drives two CPUs, while I just have one CPU, which means that the other slot is vacant. Definitely directly plugging your PCI 8pin cable to EPS will fry your GPU; but given that PCI sends 3*+12V and EPS sends 4*+12V, I'm thinking that, WITH AN ADAPTER LIKE THE THING BELOW, it would be definitely a safer choice to feed the GPU than using SATA converters, since it can supply at most 336W while using the SATA-to-8pin solution can only supply 60W. Also it reserves me the space for adding another card which I'd be happy to do so (after updating to 825W or even 1300W). [IMAGE]   The success of this dangerous scheme lies in two premises which I wanna make sure here: 1. T3610 and T5610 uses the same 24pin connector, so the power distribution board can be swapped; 2. Dell uses standard 8-pin CPU connectors, so fetching such an adapter will properly transfer it to a PCIe 8-pin. Advice or extra information anyone? 
A dangerous power supply update for my T3610