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4-pin Molex/Peripheral Cable to power PCIE Riser?

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BlakeTheDolphin
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2021/03/29 11:30:18 (permalink)
Hello, 
 
I would like to power a PCIE Riser (max wattage pull = 75 watts) with the Molex 4-pin cable that came with my Supernova P2 750 PSU. 
 
Does anyone know the max wattage EVGA's 4 pin molex/peripheral can handle?  FYI - the riser will be power a 1660 super.
 
I saw an older post saying the max was 54 watts for the molex, but I find that suprising... 
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    ty_ger07
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    Re: 4-pin Molex/Peripheral Cable to power PCIE Riser? 2021/03/29 11:52:26 (permalink)
    54 watts is the ATX certified standard.
    That's why 6-pin PCI-E power cables (which are certified for 75 watts) always used two molex connectors when using adapters.

    Don't skimp.

    If your riser board only has 1 molex connector, it was not manufactured in compliance with these standards. Don't use it. Who knows what else is wrong with it. Get a better riser board which is manufactured per standards. If the riser board gets its power directly from the PSU, per standards, it needs 2 molex connectors, or 1 6-pin PCI-E connector.
    post edited by ty_ger07 - 2021/03/29 11:58:37

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