What PCI-e Power Cables Do I Need?

[Strattton]

So here is my build I've been slowly upgrading https://pcpartpicker.com/user/Strattton/builds/ So previously I had an R9 270x which has two 6 pin connectors. I have an EVGA SuperNOVA G2 850W which comes with two 6 pin cables. So I opted to think that plugging in two separate 6 pin cables would do the trick. Turns out, nope. So I found out that I had to use a single 8 pin to two 6 pins cable. Why is that? I've seen threads where people state that you can use two cables but I can tell you it didn't work for me, and I'm pretty tech savvy.

Second and more importantly. I want to get custom sleeved cables from cablemod for a 1070 and it requires an 8 pin and 6 pin, what cables or cable should I get using their configurator?

 

[maxalge]

So here is my build I've been slowly upgrading https://pcpartpicker.com/user/Strattton/builds/ So previously I had an R9 270x which has two 6 pin connectors. I have an EVGA SuperNOVA G2 850W which comes with two 6 pin cables. So I opted to think that plugging in two separate 6 pin cables would do the trick. Turns out, nope. So I found out that I had to use a single 8 pin to two 6 pins cable. Why is that? I've seen threads where people state that you can use two cables but I can tell you it didn't work for me, and I'm pretty tech savvy.

Second and more importantly. I want to get custom sleeved cables from cablemod for a 1070 and it requires an 8 pin and 6 pin, what cables or cable should I get using their configurator?

a 8-pin delivers twice the wattage of a 6-pin



I very much doubt that psu does not come with a 6+2 pcie cable

yup i see it has THREE 6+2 pcie cables, and a single 6-pin ( 8-pin? ) cable

 

[Strattton]

a 8-pin delivers twice the wattage of a 6-pin



I very much doubt that psu does not come with a 6+2 pcie cable

I'm aware of what cables are included with my power supply.
1 x 24-Pin ATX
2 x 4+4-Pin EPS12V
4 x 6+2-Pin PCI-E
2 x 6-Pin PCI-E
10 x SATA
4 x 4-Pin Peripheral
1 x Floppy

My first question is why can't I use two separate cables (2 x 6-Pin PCI-E) Instead of the single (8 Pin to 6+2/6 Pin) it's daisy chained)?

My second question is can I use a single 8 Pin cable and a single 6 pin connector for my MSI GTX 1070?

 

[maxalge]

My first question is why can't I use two separate cables (2 x 6-Pin PCI-E) Instead of the single (8 Pin to 6+2/6 Pin) it's daisy chained)?

My second question is can I use a single 8 Pin cable and a single 6 pin connector for my MSI GTX 1070?

1. are you plugging them into the proper VGA slots on the psu? there should be no issue here...

2. both need to be populated it has both a 8-pin and a 6-pin slot, so yes is the answer

 

[Strattton]

^ Yup VGA 1 and VGA 2.

 

[Strattton]

Yup, got my 1070 and tried two cables and got this message.

Oh look, I used one cable with a 6 pin slave/daisy chain and it works...

I treid every VGA cable combination on the PSU and always got this message.

 

[Strattton]

Re-tried the VGA connection on the PSU and when using VGA 1&3 it boots up fine but not when using 1&2.