PSU to Graphics Card PCIe Cable Connection Question

[Rane777]

Good afternoon, all.

I'm currently experiencing an issue with trying to find replacement PCI-e cables that run from my PSU to my graphics card. I received a PSU (XFX-XXX 650 Watt semi-modular) from a friend about a year ago and he installed the PSU for me in my current build as a service since I bought the PSU from him. I bought an EVGA 1080 FTW Edition about 6 months ago and I was able to get everything hooked up correctly. The machine is currently working, but on the 1080, there are two 8 pin slots that are required for power. I am powering the card by using the default Y-Splitter cables (dual 6-pin power to single 8-pin power) that come with the graphics card in the box. Now, one of the Y-splitter cables has a pin that is becoming disjointed from the connector piece, so I want to have it replaced. I could just get another Y-Splitter cable, but I'm wondering if there's a better way to do this as I just recently bought a PSU shroud and some cable combs to make everything look flush. The Y-splitter cables require two 6-pins for each cable, so I'm using four 6-pin power connectors in order to hook into two Y-splitters, just so I can run one 1080...it just seems ridiculous. I'm including links to my PSU and the Y-Splitter's. With my current PSU, can I just get a straight 8-pin to 8-pin power cable and run directly from the graphics card to the PSU - then just use one Y-Splitter instead of two (is the 8-pin connector on my PSU even FOR PCI-e?)? Or, can I get a single 6-pin to dual 8-pin power cable connector and use it to power the card? I've heard things about 6-pin power only supporting 75 watts, while 8-pin supports 150 watts?? Is there a better solution than this with my current PSU and card? Keep in mind I don't have any of the extra "modular" cables that came with the PSU. Maybe I could get a set of modular cables from somewhere that are directly related to my PSU model?? I'm really at a loss for what to do here and any help from people would be greatly appreciated.

Thank you in advance

My PSU can be found here: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=181

The Y-splitter I'm referencing can be found here: http://www.ebay.com/itm/nVidia-DUAL-6-PIN-to-8-PIN-PCI-E-GRAPHIC-CARD-POWER-CABLE-ORIGINAL/322239727235?_trksid=p2385738.c100677.m4598&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20160908110712%26meid%3D34717f6db5044ea39a8c20cf8f78ccfc%26pid%3D100677%26rk%3D3%26rkt%3D50%26sd%3D261694315875

The replacement single 6-pin to dual 8-pin can be found here: https://www.newegg.com/Product/Product.aspx?Item=N82E16812423175&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Cables+-+Internal+Power+Cables-_-N82E16812423175&gclid=Cj0KEQjw2-bHBRDEh6qk5b6yqKIBEiQAFUz29tW6_4VohIRspjLqNYQNvjydij0IVmf0_1Byc2pYcA8aAkY-8P8HAQ&gclsrc=aw.ds
.

Edit:

The thing that would make the most sense to me is to get two separate 8-pin to 8-pin power modular cables and run them directly to the card from the PSU, as shown here: http://imgur.com/a/68muk

Would this work??

 

[Susquehannock]

PSU page you linked states it has one "6+2 pin PCIe" and one "6 pin PCIe ". What I would do is use the 6+2 (=8) and put a 6-pin to 8-pin adapter on the other. Both 6 and 8 pin are capable of transmitting well more than 150w. Question is whether the PSU is set up to supply to them with how much. Since your power supply is a single 624w 12-volt rail, you are fine.

 

[Rane777]

PSU page you linked states it has one "6+2 pin PCIe" and one "6 pin PCIe ". What I would do is use the 6+2 (=8) and put a 6-pin to 8-pin adapter on the other. Both 6 and 8 pin are capable of transmitting well more than 150w. Question is whether the PSU is set up to supply to them with how much. Since your power supply is a single 624w 12-volt rail, you are fine.

Thank you I will try using the dedicated 6+2 pin cable coming from the PSU to run into one of the 8-pin power slots on the card, then I will get a 6-pin to 8-pin adapter to run from a 6-pin power from the PSU into the card's other 8-pin power slot. This is very helpful and I will post back with my results.