XFX R9 280X 8 & 6 pins problem

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thefirehairman

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Nov 20, 2013
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Hi.

I just bought a XFX R9 280X video card. There's a 8 and a 6 pin connector on it.
Unfortunely, on my power supply, I only have two 6 pin connectors left. Can I connect them to the video card, or I really need a +2?

If yes, does an 6 to 8 pin adapter exists?

Thanks!
 
Solution
ko888


1000 Watts peak does not make it a 1000 Watt PSU. It's called deceptive marketing practices.

Your e-Bay link says that the PSU comes with one 75-Watt 6-pin and one 150-Watt (6+2)-pin PCI-E power connectors and yet your own picture shows that it only comes with two 75-Watt 6-pin PCI-E power connectors.

If you plug in both...
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I have a 1000w power supply. I'd like to not change it just for a graphics card. I have a 8 pin connector but it's used for the heatsink.

I have like six 4 pin peripheral power cable unused. Is there any adapter?

Or back to my first question, can i just plug the two 6 pin ATX connector on the 6 & 8 input on the GPU?

Thanks



 
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Any decent 1000W PSU will have at least 6 (6+2)-pin PCI-E power connectors. EVGA's 220-PS-1000-V1 comes with 10 (6+2)-pin PCI-E power connectors.

What heatsink requires an 8-pin connector?
 
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8 pin on the heatsink. Corsair H110

IMG_20150228_171727.jpg


And the only 2 PCI connector I have left.

IMG_20150228_171811.jpg


So the adapter is the only way I guess.
 
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Ah, Alright. Sorry about that. Well it's for the motherboard (Asus Sabertooth 990FX R2.0)

I bought the power supply on ebay 2 years ago. I'm able to see Shark written on it, so I'm pretty sure it's this onehttp://www.ebay.ca/itm/NEW-Black-1000W-ATX-Power-Supply-Fan-Control-for-PC-HP-5188-2627-Delta-DPS-300AB-/321468910384?pt=LH_DefaultDomain_0&hash=item4ad90a4b30 ... bought from the same seller 2 years ago.
 
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1000 Watts peak does not make it a 1000 Watt PSU. It's called deceptive marketing practices.

Your e-Bay link says that the PSU comes with one 75-Watt 6-pin and one 150-Watt (6+2)-pin PCI-E power connectors and yet your own picture shows that it only comes with two 75-Watt 6-pin PCI-E power connectors.

If you plug in both 75-Watt 6-pin PCI-E power connectors from your PSU to your graphics card it won't work because the graphics card will detect that a 150-Watt (6+2)-pin PCI-E connector is not connected.

If you use the StarTech PCI Express 6 pin to 8 pin Power Adapter Cable you may risk melting the insulator jacket on the wires of the existing cable that has the two 75-Watt 6-pin PCI-E connectors on it. Using that adapter cable will increase the power draw on the PSU's PCI-E power cable by up to 75-Watts. If the wire gauge that Shark Technology used is insufficient to handle the extra power draw then the wires will overheat and melt the insulator jacket on the wires in that cable bundle causing a short circuit and quite possibly an electrical fire.
 
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Solution
Alright. I thought all power supplies were the same before. Hey well.

Thank you guys for your help. I appreciate it.

One last thing. I've seen that in the original box of the R9 280X XFX, they offer 2 cables (One 2x6 pin to 8 pin, and one 2xmolex to 6 pin). I bought mine used so I didn't have that.
placa-video-xfx-r9-280x-3gb-radeon-384bit-r9-280x-tdfd-ddr5-9187-MLB20012065646_112013-F.jpg


If I'm right, the 2x6 pin to 8 will be at correct 150W, and the 2 molex to 6 also. I'm just seeing that as a last possible solution, because this GPU is the last thing that I'm adding to this computer. I would like not to change the PSU just for that.

Once again, thanks!
 
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