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Thread: GTX 280's shipping with Dual 6pin to 8pin PCIe adapters

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    Default GTX 280's shipping with Dual 6pin to 8pin PCIe adapters

    I noticed when the GX2 came out the single 6pin to 8pin pci-e adapters caused alot of debate. BFG said they were ok to use if your psu could handle 40amps on the 12v rail and shipped these cables with every GX2, while EVGA and others took caution and followed Nvidias line about whether you can use them safely depends on the PSU. I see now all vendors are shipping dual 6pin to 8pin pci-e adaptors with every GTX 280, and also a dual 4pin to single 6pin PCI-e. That's a lot of cables to power 1 graphics card. I asked this in another thread before but would you say there would be any risk in not using this particular configuration to power a GTX 280 on a Dell XPS 730/750w psu. (reason being as have no spare 4pin molex cables).

    Plan being to use 1 6pin pci-e cable, and 1 6pin to 8pin pci-e adapter instead. The spec on the PSU are 4 x 12v rails at 18amp each, max output on the 12v rail is 630watts, and combined output on the 12v rail in amps is 60amps. This is written on side of psu.

    I am asking this again on behalf of a friend and just wanted to get peoples opinions on whether there would be any risk involved. I might just tell my mate to invest in some sata drives to free up those 4pin cables.

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    I have a hard time believing a rather outdated but formidable PSUs like SS Zeus 750/850w would have trouble powering a GTX 280 card(s), no matter what the IHV opinion regarding this matter. It should never be about the connector, but the real ability of the unit in supplying the amount of power needed by these new beasts of VGA card.
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    Quote Originally Posted by spursindonesia View Post
    I have a hard time believing a rather outdated but formidable PSUs like SS Zeus 750/850w would have trouble powering a GTX 280 card(s), no matter what the IHV opinion regarding this matter. It should never be about the connector, but the real ability of the unit in supplying the amount of power needed by these new beasts of VGA card.
    Maybe the Zeus has an OCP too strictly set.
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    Quote Originally Posted by Travis View Post
    Maybe the Zeus has an OCP too strictly set.
    It wouldn't matter, as you'd be pulling power from multiple rails to power the card if you were using adapters.

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    Default

    Right. The OCP could be 16A or 18A firm... doesn't matter. You're still splitting the load across two PCIe connectors with the adapter. If the PSU can do SLI, it can do one GTX 280's.

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