gpu New PSU and GPU. 3070 ti. Need help hooking up the PCIE cables.

[BodilyFunctions]

I’ve bought a new gpu. It’s an rtx 3070 ti. I’ve also bought a 1000W Corsair PSU. I’ve been trying to hook the gpu up but I’m afraid of connecting the wrong cables. I’ve compared the cables of my old build to my new one but the old 1060 graphics card is pretty different. With the new PSU came new cables and it gave me 3 CPU 8 pin to 8 pin cables. They look like they would fit perfectly but I looked it up online and I’ve been told it would short my system. So instead I’ve grabbed these three sets of daisy chained 6+2 cables for pcie. I also saw on the forum that people can’t fuckin decide whether using daisy chained 6+2 is good for your system or not. So now I’m fuckin stumped and I’d really appreciate if someone would explain this to me like I’m 10 years old. The current set up I have is to have each of the three Pcie cords hooked up individually without using its daisy chain. Is this correct or am I doing this totally wrong? 

[Poinkachu]

34 minutes ago, BodilyFunctions said:

I’ve bought a new gpu. It’s an rtx 3070 ti. I’ve also bought a 1000W Corsair PSU. I’ve been trying to hook the gpu up but I’m afraid of connecting the wrong cables. I’ve compared the cables of my old build to my new one but the old 1060 graphics card is pretty different. With the new PSU came new cables and it gave me 3 CPU 8 pin to 8 pin cables. They look like they would fit perfectly but I looked it up online and I’ve been told it would short my system. So instead I’ve grabbed these three sets of daisy chained 6+2 cables for pcie. I also saw on the forum that people can’t fuckin decide whether using daisy chained 6+2 is good for your system or not. So now I’m fuckin stumped and I’d really appreciate if someone would explain this to me like I’m 10 years old. The current set up I have is to have each of the three Pcie cords hooked up individually without using its daisy chain. Is this correct or am I doing this totally wrong? 

If your new PSU came with only 2 GPU cable, just use 2, use daisy chain for the 3rd.

Don't use modular cable from other manufacturer.

If your previous PSU is corsair as well.
https://www.corsair.com/us/en/psu-cable-compatibility 
 

 

Also, kinda correlates to your question

 

[LIGISTX]

30 minutes ago, BodilyFunctions said:

I’ve bought a new gpu. It’s an rtx 3070 ti. I’ve also bought a 1000W Corsair PSU. I’ve been trying to hook the gpu up but I’m afraid of connecting the wrong cables. I’ve compared the cables of my old build to my new one but the old 1060 graphics card is pretty different. With the new PSU came new cables and it gave me 3 CPU 8 pin to 8 pin cables. They look like they would fit perfectly but I looked it up online and I’ve been told it would short my system. So instead I’ve grabbed these three sets of daisy chained 6+2 cables for pcie. I also saw on the forum that people can’t fuckin decide whether using daisy chained 6+2 is good for your system or not. So now I’m fuckin stumped and I’d really appreciate if someone would explain this to me like I’m 10 years old. The current set up I have is to have each of the three Pcie cords hooked up individually without using its daisy chain. Is this correct or am I doing this totally wrong? 

1000 watt Corsair PSU should have plenty of PCIe cables….

 

But even if not, a single daisy chain plus another cable will be plenty. Good PSU’s will use thick enough gauge wire to actually provide the power the PCIe spec calls for. If it’s something like a RMi or RMx Corsair unit, it’ll have very high quality wires. 

[Spotty]

The 8 pin to 8 pin cables are the EPS12V cables for the CPU. You cannot use them for your graphics card.

 

30 minutes ago, BodilyFunctions said:

So instead I’ve grabbed these three sets of daisy chained 6+2 cables for pcie. I also saw on the forum that people can’t fuckin decide whether using daisy chained 6+2 is good for your system or not. So now I’m fuckin stumped and I’d really appreciate if someone would explain this to me like I’m 10 years old. The current set up I have is to have each of the three Pcie cords hooked up individually without using its daisy chain. Is this correct or am I doing this totally wrong? 

How you've plugged it in is fine.

Using 2 cables with the third daisy chain would also be fine with those cables. Since the third connector is only a 6 pin I would plug the daisy chained connector in to that. Personally I would go with 2 cables and the 3rd 6pin off the daisy chain just to reduce cable clutter.

[BodilyFunctions]

The PSU came with 3 sets of 6+2 daisy chain cables. I’ve hooked up all three individually without using the daisy chain however my graphics card doesn’t have a slot for the 1x2 connector on the third cable. Will that still work? 

[BodilyFunctions]

This solves my second question! Tysm everyone for the quick reply! I’ll use two cables with the daisy chain for the single 6 slot! I’ll update the thread one last time once I get the computer up and running!

[LIGISTX]

2 minutes ago, BodilyFunctions said:

The PSU came with 3 sets of 6+2 daisy chain cables. I’ve hooked up all three individually without using the daisy chain however my graphics card doesn’t have a slot for the 1x2 connector on the third cable. Will that still work? 

Yes. 8 pin PCIe are just 6 pin PCIe with 2 extra. Basically. Yes. That’s relatively normal and why that third cable has a 6+2. 

[Spotty]

Just now, BodilyFunctions said:

I’ve hooked up all three individually without using the daisy chain however my graphics card doesn’t have a slot for the 1x2 connector on the third cable. Will that still work? 

Yes. The PCIe cables are often 6+2 connectors so they can be used in either 6 pin PCIe or 8 pin PCIe slots. If you aren't using the +2 connector then just let it dangle off the side. If it bothers you use some black zip ties to tie it back to the other cable.

 

The old PCIe connector was the 6 pin connector capable of up to 75W, but as graphics cards required more power they made the 8 pin power connector capable of 150W. Funnily enough the extra 2 pins don't do anything other than complete a connection to tell the graphics card "Hey, this PSU is capable of providing 150W over the PCIe connector". You can use an 8 pin (6+2) connector in a 6 pin slot just minus the +2 bit.

[Poinkachu]

26 minutes ago, BodilyFunctions said:

The PSU came with 3 sets of 6+2 daisy chain cables. I’ve hooked up all three individually without using the daisy chain however my graphics card doesn’t have a slot for the 1x2 connector on the third cable. Will that still work? 

Definitely. They made it like that so that it can be more flexible in usage.
So instead of sending people 3x 6pin PCIe and 3x 8pin PCIe,  to cater to all kind of graphic card.
They made it so that it can be used as 6pin or 8 pin.

Like @Spotty said above
(I'm a dumbass that forgot to refresh page before replying)

Less cost for them, easier (atleast for me) to manage/store the cables.

[Alex Atkin UK]

I'm more confused why a 3070 Ti has three connectors when my 3080 only has two.  Seems seriously overkill.