Graphics card power cables to PSU

[JetJaguar]

Hello

I have a new (to me) GTX 1070. It came with this Y power cable: https://drive.google.com/file/d/1zNDQJ0 ... sp=sharing

The black end goes into the graphics card, and the two whites are female, 6-pin. My PSU has 3 modular 6-pin PCI-E ports that match the white ends.

I have ordered two PCI-E 6-pin male/male cables. I plan to use them to connect the white ends of that Y cable to two of those ports on my PSU. Will that work, or will it overpower the graphics card? Should I instead get a corresponding Y cable to go from one port of the PSU and splits into two connectors for the pictured Y cable above?

thanks

[JimboPalmer]

You will not over power the card. (you may draw too much power from your PSU, but generally, it would not have 3 power connectors if it could not supply them with power)

[Jesse_V]

I don't know how the Y cable is wired or if its wiring is compatible with your PSU ports. It would be extremely unfortunate to use a $10 cable to fry the PSU or graphics card. There's too much money on the line to risk it, it my view. Second, PSUs are usually set up to run a single line, known as a rail, from one of the PSU ports to the graphics card. Sometimes the PSU can even tell you which port to use. It's often a really good idea to use the cables and wiring instructions that come with the PSU.

[lostcowboy]

Hi, your power supply likely came with extra cables. You will likely find one that has an eight-pin connector, it may be split as six-pin and two-pin. you plug the two-pin part in first then the six-pin part. The six-pin locks the two-pin in place so it can't come out. That is what I am using on my RTX 2080, which works just fine.

[JetJaguar]

I did order a cable from Aliexpress that claims to be for my brand and model of PSU. It's 6pin on one end and 6+2 on the other. I'll plug the 6 end into one of the 6-hole -modular ports of the PSU, and the 6+2 into the card, and ignore the Y-cable.