You can try to plug the 6 pin into the card, but one of those extra grounds in the 8 pin is actually a sense wire. This means the card is going to likely detect that the 6 pin is plugged in and not an 8 pin, or not detect anything at all and refuse to work (or give you an alarm status in Windows after bootup). The StarTech adapter connects the two extra pins thus tricking the card into thinking it's a real 8 pin connector.Can you just plug the 6 pin into the board without the grounds? Would it work? Barring me having arcs shooting out of the video card in case something goes south that is.
I would love to get rid of my second power cable and just use the 8 pin and 6 pin that is together on one cable. Please tell me I can do this, if it's just ground, shouldn't be a big deal right?
These 1070 use about 185W max. A pci -e 16 slot gives 75W. a 6 pin gives another 75W, 8 pin gives 150W. so you can actually get by with just 2 6pin or even 1 8pin. but it might not work if you only have 1 8 pin plug in. so you are fine with your 1 6 and 1 8 pin. you don't even need an adaptor to plug the 6 pin into the 8 pin port.
You'll get an error message at boot up which is why you need to either pay for an adapter, or the easier/cheaper option of just jumping the two free contacts on the card with something like a paperclip. The two extra pins are just a sense and a ground so it's perfectly safe to fool a card by doing this.
6+2 are 8 pin but yeah it has 2 6+2 unless i dig out my bag then it could have up to 4 i wanted to know if i needed to dig out 2 more to use the adaptors giving this card a total of 4 6 pin to feed 2 8 pin then i dug into it some more and no i am fine with the 2 6+2No PSU that I know of would have an ONLY 8 pin PCI-E connector. It would be 6+2. If it's only an 8-pin connector it may be a CPU power lead instead of a PCI-E lead..
the card i just got had two 6 pin to 8 pin adaptors i had the cables in my pc setup to have 2 6+2 pin cables i did not want to have to dig out the other cables and snake 2 more 6+2 in my case to hookup the 2 adaptors...Most 8 pin adapters on modern psu's are 6 pin adapters with their ground pins doubled up to a separate 2 pin ground. 6+2 pin.
There is no way in the entire world a 1070 would cause a problem with a 6 pin to 8 pin adapter.
Why ship a card with connectors that can handle 375w when it doesn't even use 200w?
... and claim the card has massive power handling on the spec sheet.
Why ship a card with connectors that can handle 375w when it doesn't even use 200w? Heree it's using less than the GTX 1080:
Review: EVGA GeForce GTX 1070 FTW Gaming ACX 3.0 - Graphics - HEXUS.net - Page 12
Lazy as fuck design by OEMs here, just to complicate installation, and claim the card has massive power handling on the spec sheet. I think you should be fine using a 6 to 8-pin adapter, since it shouldn't be drawing more than 75w on any particular channel