Because there was a relatively small supply of PSUs with a 12-pin power connector upon the launch of the 3000 series, Nvidia included with the packing a dual 8-pin to 12-pin adapter. The 12-pin connector is roughly the size of the 8-pin connector, but logically, can draw a lot more power. The only possible exception is if you are absolutely sure you won't be drawing enough power through it to exceed 75w.
Likewise, SATA can also be adapted into an 8-pin power connector. All these changes result in a fairly low performance per Watt result when comparing the HD 5830 to all other cards of the HD 5000 Series. http://www.avadirect.com/Two-6-pin-PCIe-Power-to-8-pin-PCIe-Power-Adapter-Cable/Product/3762008, 8 GB (2 x 4 GB) Kingston HyperX FURY 1333 MHz DDR3, 256 GB Samsung SSD 840 EVO, 40 GB Intel 320 Series SSD, WD 160 GB 7200 RPM HDD, Intel Core i7-6700K (4 x 4.00 GHz) w/ HT and Turbo on, Crucial MX300 275 GB, Seagate Exos X12 TB 7200 RPM, Nixeus NX-EDG274K (3840x2160@144 DP) + Samsung SyncMaster 906BW (1440x900@60 HDMI-DVI), Coolermaster HAF 932 w/ USB 3.0 5.25" bay. Wanamingo January 14, 2011 at 07:01:54. As mentioned earlier, the 12-pin power connector is the latest technology that is necessary for Nvidia’s 3000 series graphics cards. As long as the PSU holds up, I think it should be fine. Faster than the tortoise; slower than the hare. So, by simply adding all the numbers together we get to a total of 375 watts, but that is truly an extreme case. The community of GPU mining enthusiasts, both professionals and hobbyists.
In this particular scenario, there will be two SATA connectors for one 8-pin connector. For example, Nvidia’s GeForce GTX 1080 Ti has both types of connectors and, as a result, has a maximum power consumption of 250 watts.
If you’ll still stick to your guns, know that this sort of an adapter can sometimes require one 4-pin connector, but it’ll most often be two which is the recommended option. I just plugged those two 6-pin power connectors into the card, meaning that it now has a 8-pin power slot that only has a 6-pin power connector plugged into it. Try again, youll have to get a new PSU.
The most power-hungry graphics cards will come with a 6-pin and an 8-pin connector. A top of the line graphics card can significantly overbear the PSU, and that is something gamers do not want. would be fine if that psu was up to snuff but would't trust it, I had the same issue at work with my 7970. Out the box it gives me couple 1x8pin cables and 2 1×6+8 pin connector now my gpu the gtx 1080ti requires 8+8 pin … With this math it sounds like I shouldn't get any issues, in practice it could be different though.. Use one of these, you will be fine. It has 6 pins and 2 extra that can be detached. 6+2 pin that mean. In our power testing we saw a maximum power draw of 146W, so this is mostly for show.
8pin connectors are rated for 150w max draw. There are often compatibility issues when building a PC and power connectors are no different. APU vs CPU vs GPU – What Is The Difference? 6-Pin to 8-Pin PCI-E Adapter Cable.