EVGA

Safe to connect GPU and Riser with dual 6+2pin to 8pin cable?

Author
TheFatCat10
New Member
  • Total Posts : 7
  • Reward points : 0
  • Joined: 2018/01/09 20:16:51
  • Status: offline
  • Ribbons : 0
2018/01/10 09:03:44 (permalink)
Hey guys, this is my first time building a rig and I need some help. Right now I have 3 Nvidia 1070 ti GPUs hooked up to a EVGA superNova G3 1000w PSU. The GPUs are all connected directly to the PSU via 6+2pin to 8pin cables (assuming that’s what it’s called, please correct me if I’m wrong), but the risers are connected via Molex to SATA adapters. After reading about how dangerous the Molex to SATA adapatera can be, I’m looking for an alternative. I noticed that my PSU came with 3 dual 6+2pin to 8pin cables(again correct me if this is not what they are called) and I was wondering, if I buy new 6pin risers, can I safely use these dual cables to connect both the GPU and the riser? My thought was that I could connect one of the 6+2pins into the GPU as it requires 8 pins, the other 6+2pin into the riser (6pin riser so 2 pins would not be used) and the 8pin connector into the PSU. Each GPU/riser combo would get its own dual 6+2pin to 8pin cable, so no daisy chaining or overloading. Is this a safe way to go about things? I am overclocking a bit, but have the power set to 80% for each GPU.

If there is a better way to do this, I’m all up for suggestions!
#1

12 Replies Related Threads

    Sajin
    EVGA Forum Moderator
    • Total Posts : 25980
    • Reward points : 0
    • Joined: 2010/06/07 21:11:51
    • Location: Texas, USA.
    • Status: online
    • Ribbons : 155
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/10 09:16:43 (permalink)
    You'll most likely be fine as long as you stay below 288w on the cable.


    #2
    TheFatCat10
    New Member
    • Total Posts : 7
    • Reward points : 0
    • Joined: 2018/01/09 20:16:51
    • Status: offline
    • Ribbons : 0
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/10 09:24:14 (permalink)
    Thanks for the reply! Is there a better way to go about this? I’m looking to make this as safe as I can.... the wife would be a little upset if I burned the house down lol.
    #3
    Sajin
    EVGA Forum Moderator
    • Total Posts : 25980
    • Reward points : 0
    • Joined: 2010/06/07 21:11:51
    • Location: Texas, USA.
    • Status: online
    • Ribbons : 155
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/10 11:04:07 (permalink)
    Yes, buy a smaller psu just for the risers.


    #4
    TheFatCat10
    New Member
    • Total Posts : 7
    • Reward points : 0
    • Joined: 2018/01/09 20:16:51
    • Status: offline
    • Ribbons : 0
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/11 19:33:17 (permalink)
    What if instead of connecting the riser and GPU together, I just daisy chain 2 risers at a time with the same dual 6+2pin to 8pin cables, or I daisy chained 2 GPUS, would that be any safer? I’ve looked around online and there is very limited info on this kinda set up.
    #5
    TheFatCat10
    New Member
    • Total Posts : 7
    • Reward points : 0
    • Joined: 2018/01/09 20:16:51
    • Status: offline
    • Ribbons : 0
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/11 19:33:17 (permalink)
    What if instead of connecting the riser and GPU together, I just daisy chain 2 risers at a time with the same dual 6+2pin to 8pin cables, or I daisy chained 2 GPUS, would that be any safer? I’ve looked around online and there is very limited info on this kinda set up.
    #6
    Chris21010
    FTW Member
    • Total Posts : 1449
    • Reward points : 0
    • Joined: 2006/05/03 07:26:39
    • Status: online
    • Ribbons : 8
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/11 20:16:51 (permalink)
    using splitters are the quickest way of overloading your cables and burning up stuff. as it makes to very easy to overload the cables themselves, avoid using them if it at all possible.


    #7
    TheFatCat10
    New Member
    • Total Posts : 7
    • Reward points : 0
    • Joined: 2018/01/09 20:16:51
    • Status: offline
    • Ribbons : 0
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/11 20:20:59 (permalink)
    Chris21010
    using splitters are the quickest way of overloading your cables and burning up stuff. as it makes to very easy to overload the cables themselves, avoid using them if it at all possible.


    Is this still the case when using the dual 6+2pin to 8pin that came with the PSU? If so, why would they include it, if it wasn’t meant to be used? Genuinely asking.
    #8
    Chris21010
    FTW Member
    • Total Posts : 1449
    • Reward points : 0
    • Joined: 2006/05/03 07:26:39
    • Status: online
    • Ribbons : 8
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/12 08:10:15 (permalink)
    if you are talking about the modular cables that plug into the power supply, those are fine. those cables are also all male ends so you can not chain then together and over load them. now GPU's do tend to come with dual 6pin to 8pin power, but the two 6pin are female and the 8pin is male. if you are buying a 6pin or 8pin female to dual male then this is what i was talking about and should be avoided. as you are possibly doubling the power that the cables were designed to handle safely.


    #9
    TheFatCat10
    New Member
    • Total Posts : 7
    • Reward points : 0
    • Joined: 2018/01/09 20:16:51
    • Status: offline
    • Ribbons : 0
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/12 12:23:10 (permalink)
    Yes, I am talking about the cable that comes with the power supply that are all male. the cable has the one end that is 8pin and plugs into the PSU and the other end splits off into two separate 6+2pin connectors. I just want to take each of those 6+2 ends and plug them into either 2 separate GPUs or 2 Separate risers. From the sounds of it, this seems to be ok to do.
    #10
    Chris21010
    FTW Member
    • Total Posts : 1449
    • Reward points : 0
    • Joined: 2006/05/03 07:26:39
    • Status: online
    • Ribbons : 8
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/12 13:00:10 (permalink)
    yes, that is fine. the only thing i would make sure of is if you are using multiple power supplies that you have the board and all the risers on the same power supply, and if there is space left add gpu's. just do not have two power supplies powering a single device.


    #11
    Chris21010
    FTW Member
    • Total Posts : 1449
    • Reward points : 0
    • Joined: 2006/05/03 07:26:39
    • Status: online
    • Ribbons : 8
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/12 13:00:10 (permalink)
    .


    #12
    QuintLeo
    SSC Member
    • Total Posts : 551
    • Reward points : 0
    • Joined: 2016/04/16 23:05:09
    • Status: offline
    • Ribbons : 3
    Re: Safe to connect GPU and Riser with dual 6+2pin to 8pin cable? 2018/01/12 16:03:45 (permalink)
    Switch to risers that have a MOLEX connector on the riser, is the easiest SAFE solution.
    Splitting out the PCI-E connectors to connect to risers with a PCI-E connector on the riser works too, if the splitters are high quality and you don't overload the connection to the PS.
     

    I am no longer the friendly FAH competition - thank Vorsholk and his ABUSE of his Curecoin developer position for that.
     I am still big on MOOing though!
     
    #13
    Jump to:
  • Back to Mobile