One PCI-E 2x 8 pin to power two 4x 6 pin card?

[OhMyHolyToken]

Hi,

Can I use one PCI-E cable from PSU with two 8 pin to power two R9 280 card with two 6 pin each? Using two "8 to two 6 pin" cables like this?




Thanks

[edwardceng]

yes, you can do it. a 6 pin PCIE plug is rated up to 75 watts, and 6+2 pins connectors (8 pin) is 150 Watt. it's enough to power your GPUs

[nc50lc]

Hey, Make sure that the Adapter you are using is not substandard.
Check the Wires, the connector's materials and edges.

or it'll end up like this: Burned 18 AWG Wire And 8-Pin VGA GPU Power Connectors

[oddity2505]

Hi,

Can I use one PCI-E cable from PSU with two 8 pin to power two R9 280 card with two 6 pin each? Using two "8 to two 6 pin" cables like this?




Thanks

If you were about to use it to power some gtx 1060, for example, I would say yes. But R9 280 consumes so much. I would avoid using just one cable for both of them unless they are severely undervolted and mining cryptonight only.

[szafa]

What psu you have?

[OhMyHolyToken]

What psu you have?

Corsair 1000W and 750W.

I tried to use 8 pin CPU to two 6+2 PCI-E adapter from ebay - but PSU not even start with it plugged...
https://www.ebay.ca/itm/CPU-8Pin-to-Graphics-Video-Card-Double-PCI-E-PCIe-Power-Supply-Splitter-Cable/272720358725?hash=item3f7f666d45:g:fZAAAOSwiQ9ZQ5oL

[P00P135]

What psu you have?

Corsair 1000W and 750W.

I tried to use 8 pin CPU to two 6+2 PCI-E adapter from ebay - but PSU not even start with it plugged...
https://www.ebay.ca/itm/CPU-8Pin-to-Graphics-Video-Card-Double-PCI-E-PCIe-Power-Supply-Splitter-Cable/272720358725?hash=item3f7f666d45:g:fZAAAOSwiQ9ZQ5oL

Don't think you can use CPU 8pin to power GPU's only pcie 6/8 pins.

[OhMyHolyToken]

Can I power a R9 280 with one 8 pin from PCI-E and one 6 pin from two molex to 6 pin PCI-e adapter?

Thanks

[nc50lc]

Yes you can, just take  note of the wire's color.
yellow: 12v
Black: neutral
It basically reroute the wires of the two six pins into the 8pin connector.