Gtx 1070 founders edition power requirements

[rockertopper24]

I just recently acquired a gtx 1070 founders edition card. I will be upgrading from a gtx 960 but my issue is that I've only got a 6 pin connector to power my current card with. My psu is 1000watt but its fully modular and i seem to have misplaced the 6+2 cable. My question is can i still run the 1070 on the standard 6 pin connector for now or will it not be enough to power the card?

[TechMan2175]

NO DO NOT ONLY RUN ONE POWER CONECTOR!!! this may seriously damage your card

[Jurrunio]

5 minutes ago, rockertopper24 said:

misplaced

you mean the 6+2 cable is missing?

 

you can try use the 6pin, but Nvidia might have protections that stops you from doing so

 

4 minutes ago, TechMan2175 said:

NO DO NOT ONLY RUN ONE POWER CONECTOR!!! this may seriously damage your card

why? Reference 1070 is a 150w card, and PCIe slot + PCIe 6pin can give 150w of power.

[rockertopper24]

5 minutes ago, Jurrunio said:

you mean the 6+2 cable is missing?

 

you can try use the 6pin, but Nvidia might have protections that stops you from doing so

 

why? Reference 1070 is a 150w card, and PCIe slot + PCIe 6pin can give 150w of power.

This was my thought process behind the situation as well but before I just went to plugging things in I thought I'd ask for a second or third or multiple opinions for that matter. Technically the cable is missing yes. I have it somewhere I just cant seem to find it. Moved recently and is probably packed away somewhere where I wont find it until after I buy a replacement lol.

[-rascal-]

3 hours ago, TechMan2175 said:

NO DO NOT ONLY RUN ONE POWER CONECTOR!!! this may seriously damage your card

 

3 hours ago, Jurrunio said:

you mean the 6+2 cable is missing?

 

you can try use the 6pin, but Nvidia might have protections that stops you from doing so

 

why? Reference 1070 is a 150w card, and PCIe slot + PCIe 6pin can give 150w of power.

 

GTX 1070 Founder's Edition, along with a few custom cooler GTX 1070's, only use a single PCI-E 8-pin connector.

The EVGA GTX 1070 SC Black Edition that I have also requires a single PCI-E 8-pin connection as well.

 

@rockertopper24

Your best and safest best is to get hold of a replacement PCI-E 6+2 or 8-pin power cable.

Some cards have a power sensing feature, where the card won't even power on if the wrong connector is detected (e.g. using 6-pin in an 8-pin socket).

PCI-E 6-pin is rated for 75W, while PCI-E 8-pin is 150W.

[Firewrath9]

4 hours ago, rockertopper24 said:

I just recently acquired a gtx 1070 founders edition card. I will be upgrading from a gtx 960 but my issue is that I've only got a 6 pin connector to power my current card with. My psu is 1000watt but its fully modular and i seem to have misplaced the 6+2 cable. My question is can i still run the 1070 on the standard 6 pin connector for now or will it not be enough to power the card?

dont you get like 6 of them with the psu? order replacement ones.

[rockertopper24]

On 9/14/2018 at 3:47 PM, Firewrath9 said:

dont you get like 6 of them with the psu? order replacement ones.

this psu only came with 1 and ive looked all over and cant seem to find just this cable. I can find entire cable packages with every cable but i don't really need 60 dollars worth of cables just to use 1 from the package.

[Fasauceome]

Do you have another 6 pin? You can get a 2x6 pin to 8 pin

[rockertopper24]

ok so after doing some research on the pinout of the 8 pin pci express graphics card power cable I came to find that the first 6 pins are the same as the original 6 on the 6 pin cards. The additional two pins are ground and sense which the sense wire is just looking for ground.  Looking further into the situation the additional ground pin shares common ground with the other 3 grounds on the cable so what I've done (that seems to be working temporarily as I'm using the card right now) is to take and old 4 pin atx 12v cable and cut it in half leaving me two pins ontop of each other. Then I simple wired those two pins together and the card works perfectly.  I will be running benchmarks on it soon and will report back with the results.

[Fasauceome]

1 hour ago, rockertopper24 said:

ok so after doing some research on the pinout of the 8 pin pci express graphics card power cable I came to find that the first 6 pins are the same as the original 6 on the 6 pin cards. The additional two pins are ground and sense which the sense wire is just looking for ground.  Looking further into the situation the additional ground pin shares common ground with the other 3 grounds on the cable so what I've done (that seems to be working temporarily as I'm using the card right now) is to take and old 4 pin atx 12v cable and cut it in half leaving me two pins ontop of each other. Then I simple wired those two pins together and the card works perfectly.  I will be running benchmarks on it soon and will report back with the results.

Well at this point I just hope you're willing to accept the risk of putting the wrong cables into your graphics card. It may seem simple on the surface but any number of things can go wrong, so good luck.

[rockertopper24]

4 hours ago, fasauceome said:

Well at this point I just hope you're willing to accept the risk of putting the wrong cables into your graphics card. It may seem simple on the surface but any number of things can go wrong, so good luck.

Please explain to me what can go wrong. The graphics card is still receiving 150 watts of power so under heavy loads it still has adequate power supply.

[Fasauceome]

15 minutes ago, rockertopper24 said:

Please explain to me what can go wrong. The graphics card is still receiving 150 watts of power so under heavy loads it still has adequate power supply.

I think I got the wrong idea, I thought you were running an EPS cable from the PSU to the GPU, which has a different configuration entirely.

[rockertopper24]

7 hours ago, fasauceome said:

I think I got the wrong idea, I thought you were running an EPS cable from the PSU to the GPU, which has a different configuration entirely.

No I ran the PCIe 6 pin cable to the card and then took an old ATX-12V cable and literally split it in half between pins 1 and 2 up through 3 and 4 leaving pins 1 and 3 on the remainder of the cable. Trimmed the corners of pin 1 using a razor blade to make it fit, and the wired pins 1 and 3 of that cable together to act as a jumper from for pin 4 to 8 on the PCIe 8 pin connector.