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Does an 8pin to 6pin work the same as a 6+2pin pci express cable?

I'm installing a new graphics card that requires a 6pin and 8pin connection but only have two six pin cords. Will this adapter http://www.systemagnostic.com/wp-uploads/2013/02/2x6pin-to-8pin-PCIe.jpg be sufficient in converting 6pin power into 8pin power? or do I need one of these http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress6plus2
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More about 8pin 6pin work 2pin pci express cable
  1. What is the actual GPU model? Many mid-range models (150-200W) will work fine with either 6+6 or 8+0.
  2. InvalidError said:
    What is the actual GPU model? Many mid-range models (150-200W) will work fine with either 6+6 or 8+0.


    xfx r9 290 dd
  3. Best answer
    CaesarSalad said:
    xfx r9 290 dd

    That one is a 250-300W job so it does need that 8+6.

    You did not say what your PSU was either. In general, if it does not have a 8-pin (or 6+2) PCIE cable, there is a fair probability its rating or quality might be too low to reliably handle that GPU for long if at all.
  4. InvalidError said:
    CaesarSalad said:
    xfx r9 290 dd

    That one is a 250-300W job so it does need that 8+6.

    You did not say what your PSU was either. In general, if it does not have a 8-pin (or 6+2) PCIE cable, there is a fair probability its rating or quality might be too low to reliably handle that GPU for long if at all.


    I have a 520W Seasonic bronze certified modular power supply. I was told on this forum it should be sufficient to power the card because the actual load is much less than the recommended Wattage since I am not overclocking. I ended up using an 6+2 and a 6pin cable. I haven't tested any games yet but the system is up and running which is always a relief. Thanks for your help.
  5. CaesarSalad said:
    I have a 520W Seasonic bronze certified modular power supply. I was told on this forum it should be sufficient to power the card

    Seasonic is among the best PSU manufacturers out there so you will most likely be ok.

    I was mainly worried that you would answer something like Diablotek or any of the other ~30 well-known sub-par brands.
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