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No power connector on GTX 750Ti?

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shamanpa
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2015/11/28 12:11:25 (permalink)
I just upgraded from a GTX 550 Ti SC to a 750 Ti (straight). I noticed that the 750 does not have a power connector, which the 550 does. Is that because the 550 is Super-Clocked (SC) and the 750 is not? Or was this an oversight and a power connector should have been attached?
 
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    GT-TR
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    Re: No power connector on GTX 750Ti? 2015/11/28 12:22:41 (permalink)
    I have the GTX750 1GB superclocked and it doesnt have a power connector either so nothing to do with being superclock model.
     
    My understanding is its because the 700 series was a major change in gpu design which run much more efficiently so all the power they need can be supplied through the PCI-E slot.
     
     

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    bob16314
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    Re: No power connector on GTX 750Ti? 2015/11/28 12:39:00 (permalink)
    Supplemental power connector(s) are not needed on a GTX 750 Ti because it's only a 60-watt card (see Details)..A PCIe slot can provide 75-watts..It gets all the power it needs from the PCIe slot..A GTX 550 Ti SC is a more power-hungry card that needs supplemental power beyond what the PCIe slot is capable of providing.
     
     
    post edited by bob16314 - 2015/11/28 12:48:07

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    the_Scarlet_one
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    Re: No power connector on GTX 750Ti? 2015/11/28 15:00:53 (permalink)
    bob16314
    Supplemental power connector(s) are not needed on a GTX 750 Ti because it's only a 60-watt card (see Details)..A PCIe slot can provide 75-watts..It gets all the power it needs from the PCIe slot..A GTX 550 Ti SC is a more power-hungry card that needs supplemental power beyond what the PCIe slot is capable of providing.
     
     


    There are a couple of 750ti's with a 6pin connector, but most of them do not require a connector to work.


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    shamanpa
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    Re: No power connector on GTX 750Ti? 2015/11/28 16:15:58 (permalink)
    Ah, thanks for the input, everyone! Enjoy your holidays!
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    bob16314
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    Re: No power connector on GTX 750Ti? 2015/11/29 02:46:14 (permalink)
    You're welcome, same to you..But just to help you understand better, industry standard specifications limit PCIe x16 slot power draw to 75-Watts..The GTX 750 Ti is a 60-Watt card and gets all of it's power through the PCIe x16 slot..The more powerfull versions such as the 750 Ti with ACX Cooling and the FTW with ACX Cooling are 80-85-Watt cards that require supplemental power beyond the 75-Watt PCIe x16 slot limit..The power draw of the card, (any card, any manufacturer) determines what type/how many/if any supplemental power connectors (aka PEG connectors) are needed and the card manufacturer can arrange them however they want..For example, card manufacturer ABC could opt to use two 6-pin supplemental power connectors (75W + 75W) while card manufacturer XYZ could opt to use one 8-pin supplemental power connector (150W) instead, for the same power draw card, to achieve the same end result..PCI-SIG writes the standards for all things PCI/PCIe that manufacturers should adhere to..Here is a little more info on that..Intel writes the standards and design guides for all things Power Supply Unit that manufacturers should adhere to.
     
    A 6-pin supplemental power connector can supply 75-Watts.
    An 8-pin supplemental power connector can supply 150-Watts.
    A 6-pin + 6-pin supplemental power connector arrangement can supply 150-Watts.
    A 6-pin + 8-pin supplemental power connector arrangement can supply 225-Watts.
    An 8-pin + 8-pin supplemental power connector arrangement can supply 300-Watts.
    An 8-pin + 8-pin + 6-pin supplemental power connector arrangement can supply 375-Watts.
    All of this in addition to the 75-Watts the PCIe slot can provide. 

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