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1080ti power cables

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Cyphercitix
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2017/04/14 07:57:25 (permalink)
This is going to be my first time having a gpu with 2 power connectors, what is the best option use one cable that has two plugs, or use two different cables?
space is not an issue.
psu=Corsair HX750i
gpu=FTW3
post edited by Cyphercitix - 2017/04/14 08:23:09
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    burt666666
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    Re: 1080ti power cables 2017/04/14 08:10:55 (permalink)
    Most power supplies have separate power connectors for this.They should be marked PCI-e....

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    bob16314
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    Re: 1080ti power cables 2017/04/14 08:17:02 (permalink)
    You should say what PSU and specific 1080 Ti you have, but using one cable with two plugs from your PSU should work perfectly fine..Sometimes using a PSU with multiple +12V rails can cause problems and using two cables are needed, but if you have a single +12V rail PSU, or even if you don't (in most cases), one cable should do the trick. 

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 08:22:38 (permalink)
    bob16314
    You should say what PSU and specific 1080 Ti you have, but using one cable with two plugs from your PSU should work perfectly fine..Sometimes using a PSU with multiple +12V rails can cause problems and using two cables are needed, but if you have a single +12V rail PSU, or even if you don't (in most cases), one cable should do the trick. 


    very true, i have a corsair HX750i, and the ftw3
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    TRClark911
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    Re: 1080ti power cables 2017/04/14 08:29:27 (permalink)
    EVGA PSU and GPU... 1 cable 2 plugs works fine here.
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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 08:31:30 (permalink)
    thanks for the help evryone. After looking at my psu and the FTW3 closer im going to haft to go with one cable, so now i need to go change my cablemod order.
    post edited by Cyphercitix - 2017/04/14 08:36:15
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    imweasel
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    Re: 1080ti power cables 2017/04/14 08:49:51 (permalink)
    I have a beefier PSU - but I didn't notice any problems with either 1 or 2 cables (even when I had 2 980 GTX SC's - where I had each on 1 cable and then tried connecting each connector on a cable to a different GPU). The nice thing about 1 cable is less cable management, especially using my free EVGA PowerLink!

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    Re: 1080ti power cables 2017/04/14 08:53:24 (permalink)
    Cyphercitix
    This is going to be my first time having a gpu with 2 power connectors, what is the best option use one cable that has two plugs, or use two different cables?
    space is not an issue.
    psu=Corsair HX750i
    gpu=FTW3

     
    If your Power Supply has them then I would recommend using two Cables if not then one cable with two ends work as well.
     
    Cyphercitix
    my psu has multiple 8pin but they don't look like the right 8 pin for pcie

    The Cables are most likely 6+2 cables and you join then together to create the 8-Pin and for the 6-Pin need you need to unclip the 2-Pin part and use only the 6-Pin part in the GPU.
     
    Cyphercitix

    this is what i have the one aboves 6+2 & 4+4 are the same as the rest just inverted

    but if you look at the port on the gpu and even the 1070 which i have the ports are the same but differ from the one on the power supplky if that is done on purpose to as you said to make the proper connections, then i got nothing to worry about and im just being silly.

     
    Then you use two 2+6 Pin Connectors.
      
    You should have 3 PCIe 8 pin (6+2) cable 2 600mm, 750mm (± 10mm) with that PSU Link
    You have 3 PCIe Connectors on this PSU 2nd Row 3 on the Right if I read it right.
    post edited by bcavnaugh - 2017/04/14 09:53:17

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 08:54:46 (permalink)
    my psu has multiple 8pin but they don't look like the right 8 pin for pcie
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    imweasel
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    Re: 1080ti power cables 2017/04/14 09:06:02 (permalink)
    Cyphercitix
    my psu has multiple 8pin but they don't look like the right 8 pin for pcie

    I assume one of those 8 pins is the 4+4 that is to supply power to the CPU on the motherboard. 

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 09:14:26 (permalink)
    imweasel
    Cyphercitix
    my psu has multiple 8pin but they don't look like the right 8 pin for pcie

    I assume one of those 8 pins is the 4+4 that is to supply power to the CPU on the motherboard. 


    yes that one is labeled, then there is a 6+2 pcie and then 3 more, so now i have another question, does the connectors on the psu side differ from the ones supposed to go to the gpu side? Because looking at this all the psu ports are the same but differ from that on the gpu. so if that is the case would any 8 pin connector thats labeled as pcie work? sorry i'm feeling like a computer hardware noob right now.
    #11
    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 09:15:50 (permalink)
    And as a second part i have already ordered 2 pcie 8 pin cables from cablemod. those will work then i will just stick with using the two cables.
     
    post edited by Cyphercitix - 2017/04/14 09:18:57
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    imweasel
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    Re: 1080ti power cables 2017/04/14 09:22:35 (permalink)
    Cyphercitix
    yes that one is labeled, then there is a 6+2 pcie and then 3 more, so now i have another question, does the connectors on the psu side differ from the ones supposed to go to the gpu side? Because looking at this all the psu ports are the same but differ from that on the gpu. so if that is the case would any 8 pin connector thats labeled as pcie work? sorry i'm feeling like a computer hardware noob right now.

    I'm not at home where I could see mine, but I thought the ends were keyed (certain pins were square vs round) differently so as to prevent incorrect connections.  I did try to only connect cables from my current modular PSU and use those labeled for PCIe for the video card and then those labeled SATA for the 2 SSD's I have.

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 09:28:49 (permalink)

    this is what i have the one aboves 6+2 & 4+4 are the same as the rest just inverted

    but if you look at the port on the gpu and even the 1070 which i have the ports are the same but differ from the one on the power supplky if that is done on purpose to as you said to make the proper connections, then i got nothing to worry about and im just being silly.
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    bob16314
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    Re: 1080ti power cables 2017/04/14 09:41:37 (permalink)
    Be calm..All is well..The connectors, on both ends, will only fit where they're supposed to.

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 09:44:39 (permalink)
    bob16314
    Be calm..All is well..The connectors, on both ends, will only fit where they're supposed to.


    yeah all is good now.
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    imweasel
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    Re: 1080ti power cables 2017/04/14 10:01:45 (permalink)
    bob16314
    Be calm..All is well..The connectors, on both ends, will only fit where they're supposed to.

    I'm glad that was the case both with my current and previous PSU - the keying of the connectors prevented me from screwing up while being over-confident that I didn't really need to pay attention to something as mundane as connecting power cables!

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    rludwic
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    Re: 1080ti power cables 2017/04/14 10:42:36 (permalink)
    Yeah, I would recommend using two cables. It's a cleaner power delivery and puts less amperage stress on the cables. If you didn't have a choice I'd say load that cable up, but you do have a choice. 

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    Cool GTX
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    Re: 1080ti power cables 2017/04/14 11:17:46 (permalink)
    Cyphercitix
     
    yes that one is labeled, then there is a 6+2 pcie and then 3 more, so now i have another question, does the connectors on the psu side differ from the ones supposed to go to the gpu side? Because looking at this all the psu ports are the same but differ from that on the gpu. so if that is the case would any 8 pin connector thats labeled as pcie work? sorry i'm feeling like a computer hardware noob right now.




     
    For PCIe cables 6+2 on one end and 8-pin on the other end
     
    The 8-pin group Only goes into the PSU port
     
    The 6-pin + 2-pin Only goes into the GPU card - installed properly the 6-pin hold the 2-pin in place

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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 12:24:41 (permalink)
    rludwic
    Yeah, I would recommend using two cables. It's a cleaner power delivery and puts less amperage stress on the cables. If you didn't have a choice I'd say load that cable up, but you do have a choice. 

    That's what I'm going to go with since I already have the cables ordered.
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    demon09
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    Re: 1080ti power cables 2017/04/14 19:34:18 (permalink)
    hmm running my ti off of the daisy chain cable that has two 8 pins on it ,on my evga g3 850. Is there a significant reason to change it out for two separate cables?
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    Cyphercitix
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    Re: 1080ti power cables 2017/04/14 19:47:09 (permalink)
    demon09
    hmm running my ti off of the daisy chain cable that has two 8 pins on it ,on my evga g3 850. Is there a significant reason to change it out for two separate cables?


    From what other people have said no, if isn't broken don't fix it.
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    bcavnaugh
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    Re: 1080ti power cables 2017/04/14 19:52:37 (permalink)
    demon09
    hmm running my ti off of the daisy chain cable that has two 8 pins on it ,on my evga g3 850. Is there a significant reason to change it out for two separate cables?


    rludwic
    Yeah, I would recommend using two cables. It's a cleaner power delivery and puts less amperage stress on the cables. If you didn't have a choice I'd say load that cable up, but you do have a choice. 


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    yeungster
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    Re: 1080ti power cables 2017/04/15 02:01:13 (permalink)
    it's the other end of the cables you should be looking at, not the ends that plug into the back of the psu. The ends that plug into the psu will vary dependent on brand and model. The opposite ends are the only ones you should concern yourself with.

    As said before the 8 pin will fit or the 6+2
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    Cyphercitix
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    Re: 1080ti power cables 2017/04/16 16:32:12 (permalink)
    yeungster
    it's the other end of the cables you should be looking at, not the ends that plug into the back of the psu. The ends that plug into the psu will vary dependent on brand and model. The opposite ends are the only ones you should concern yourself with.

    As said before the 8 pin will fit or the 6+2

    The cables i ordered from cablemod were specific for my brand/model, so i should be good then.
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    Mrquick92
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    Re: 1080ti power cables 2017/04/16 17:09:43 (permalink)
    Cyphercitix
    The cables i ordered from cablemod were specific for my brand/model, so i should be good then.

    Yes as long as you bought the C-Series - AXi, HXi & RM your cables will work. I was thinking of getting the basic set now that I have a fully modular PSU.

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    Quad5Ny
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    Re: 1080ti power cables 2017/04/17 07:08:28 (permalink)
    Here are some answers from some reputable sources:

    jonnyguru
    Pigtail connectors are fine for GPUs with a 6-pin and an 8-pin as those cards shouldn't be pulling anything more than 225W from the PCIe cables, but certainly not anything with a pair of 8-pin connectors.

    Source: http://forum.corsair.com/Forums/showthread.php?p=716582#post716582
    ---
    No definitive answer because it depends on the graphics card.

    In the case of your 980Ti: No problem. Dual GPU card like the 295X2? No freakin' way.

    Source: http://forum.corsair.com/Forums/showthread.php?p=805043#post805043



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    post edited by Quad5Ny - 2017/04/17 07:11:26
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    imweasel
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    Re: 1080ti power cables 2017/04/17 08:14:11 (permalink)
    Cyphercitix
    yeungster
    it's the other end of the cables you should be looking at, not the ends that plug into the back of the psu. The ends that plug into the psu will vary dependent on brand and model. The opposite ends are the only ones you should concern yourself with.
    As said before the 8 pin will fit or the 6+2

    The cables i ordered from cablemod were specific for my brand/model, so i should be good then.

    I just wanted to chime back in and to mention that it is important to use/get cables for that specific P/S.  Once ... once , I happened to use a cable from one modular P/S on a different one.  The connector on the older cable happened to have the same key form to allow it to connect to the new P/S - and after connecting a HD to the cable and trying to power on my P/S decided to completely stop working.  The only good thing that happened is that I ended up buying an EVGA SuperNOVA 1200 PS P/S.  But - not a good reason to update your P/S!

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