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6 pin cable to power 8 pin graphics card

Tags:
  • Power Supplies
  • MSI
  • Cable
  • Power
  • gtx 770
  • Gigabyte
  • gtx 760 itx
  • cx600
  • Corsair
  • Graphics
  • Graphics Cards
Last response: in Graphics & Displays
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July 13, 2014 7:55:09 AM

Hello. Would using a 6pin cable on a 6 to 8 pin adapter potentially underpower a graphics card? I've tried searching around the forums, but the answers have been pretty divided regarding this topic.

Long story short, due to the stiffness of my power supply cables (Hard rubber casing at the end keeping the mesh coating on) and giant side panel fan, I am unable to directly plug my power supply into the top 8 pin connector on my graphics card without the cable sticking out and hitting my fan, so my only option is to use an adapter.

Here is my graphics card http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And power supply http://www.newegg.com/Product/Product.aspx?Item=N82E168...

When playing games, I occasionally get small hiccups for just a brief moment, but enough that I notice it. For instance, while playing Alice: Madness returns, there are moments where the game will just stop for a split second, the audio will keep going, then resume as normal. I use this game as an example because it is an older, hardly power demanding game, and this card is more than capable of handling it. I also occasionally get the same sort of issue while streaming videos online. The movie will stop in place for about 1 second, the audio will continue going, then it will catch itself and continue playing as normal.

Rest of my relevant specs include
i5 4690 3.5ghz processor
8 gig gskill ripjaw ram
Gigabyte z97x sli motherboard

So is it possible that using the adapter could be under powering my card?

More about : pin cable power pin graphics card

a c 297 ) Power supply
a c 208 U Graphics card
July 13, 2014 8:09:28 AM

If your PSU already has the appropriate connectors so that it could run it without an adapter then the adapter poses no threat. An 8 pin GPU power cable only adds 2 more grounds and the nature of electricity means it can't be "underpowered" because you used an adapter, current doesn't work that way. You should be fine with that adapter, it seems more like something is tripping up your system as a whole because streaming a movie won't kick your GPU into full power mode so that isn't likely to be the issue.
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a b ) Power supply
a b U Graphics card
July 13, 2014 8:23:49 AM

if i'm looking at the specs for your psu correctly, you should have (2X) 6+2pin connectors? would you be able to use a 2x6pin to 1(8pin) adapter?
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July 13, 2014 8:47:42 AM

Thanks for the reply, guys. I could buy a 8 pin to 8 pin and put my 6+2 into it. I was just using the 6 to 8 because that's what my card came with, and unfortunately there are no electronic stores in my area that provide these adapters.

Hmm. Well if the card under powering isn't the issue, I'm a bit concerned. I've ran memory tests and stress tests with no errors to report. I wonder what could be causing this. I know it's not the biggest of issues, but it honestly just kind of annoys me haha.
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a b ) Power supply
a b U Graphics card
July 13, 2014 10:23:41 AM

Draydince said:
Thanks for the reply, guys. I could buy a 8 pin to 8 pin and put my 6+2 into it. I was just using the 6 to 8 because that's what my card came with, and unfortunately there are no electronic stores in my area that provide these adapters.

Hmm. Well if the card under powering isn't the issue, I'm a bit concerned. I've ran memory tests and stress tests with no errors to report. I wonder what could be causing this. I know it's not the biggest of issues, but it honestly just kind of annoys me haha.


Have you looked to your drivers? Perhaps a clean sweep of all old drivers plus new install. Guru3d has an excellent tool for cleaning up old drivers.
http://www.guru3d.com/files-details/display-driver-unin...

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