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Answered2080 TI FTW3 Ultra with x299 mobo, PSU cable question!

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larisagnia
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2019/12/18 15:52:36 (permalink)
Ayo, so I got an evga x299 dark with the 2080 ti ftw. The board says it has a extra 6 pin slot on the bottom left to help aid more demanding cards. But, that was if the card was ONE 8 pin connector. This card has 2 haha. So question is:
Connect 2 8 pin cables to the PSU? Or, connect one and use one 8pin with a splitter for 6 pin for the board for the other slot.
 
Mobo: Evga x299 Dark
CPU: 10980xe (uses 2 8 pin connectors too)
GPU: 2080 Ti Ftw3 Ultra
PSU: T2 SuperNova 1600
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    jasoncodispoti
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 17:37:27 (permalink) ☼ Best Answerby larisagnia 2019/12/18 18:31:34
    Connect all three. Three dedicated PCIe cables; x2 going to the GPU and x1 going to the motherboard. The x2 going to the GPU are not optional regardless of what you do with the one on the mother board. Also it’s recommended to use dedicated cables, not the cables with the splitter.

    My understanding is the one going to the motherboard is not 100% needed. It is however recommended if you are running multiple GPUs and I have seen some suggest on here that it can aid in stability.

    My thoughts... why not all three? Not going to hurt anything...
    post edited by jasoncodispoti - 2019/12/18 17:40:29

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    larisagnia
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 17:40:48 (permalink)
    jasoncodispoti
    Connect all three. Three dedicated PCIe cables; x2 going to the GPU and x1 going to the motherboard.

    My understanding is the one going to the motherboard is not 100% needed. It is however recommended if you are running multiple GPUs and I have seen some suggest on here that it can aid in stability.

    Also the x2 going to the GPU are for sure required regardless of what you do with the one on the mother board. I also would not suggest using splitters, dedicated cable for each plug.

    My thoughts... why not all three? Not going to hurt anything...

    Cool. this is what I wanted to do. Only now... I have a 2 VGA cables and they fit into the GPU but not the PSU... maybe I got the wrong cable?
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    larisagnia
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 17:54:31 (permalink)
    Hell, the 6 pin splitter wont even reach the mobo... and the 6+2 pin has the non square shape on 2 pin side.
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    Sajin
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 17:54:34 (permalink)
    The solid 8-pin end plugs into the psu while the 6+2 end plugs into the gpu. Since you're only running one gpu you don't need to plug a cable into the motherboard for additional pci-e power.


    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
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    larisagnia
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 17:55:34 (permalink)
    Sajin
    The solid 8-pin end plugs into the psu while the 6+2 end plugs into the gpu.


    Even if the pin size on the 2 pin doesn't match the gpu?
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    larisagnia
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 18:32:46 (permalink)
    Called EVGA support. Recommended 2 8 pin/6+2 pin cables and then plug the 6 pin mobo header into the PSU, and its okay if the 6+2 pin header doesn't match the 2080 TI Ftw3 Ultra. 
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    bob16314
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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2019/12/18 19:17:35 (permalink)
    Sajin
    Since you're only running one gpu you don't need to plug a cable into the motherboard for additional pci-e power.



    True story.
     
    larisagnia
    Called EVGA support. Recommended 2 8 pin/6+2 pin cables 



    Installation remark for high power consumption graphics cards
     
    High power graphics cards (above 225 Watts) are usually outfitted with two (or three) PCIe slots. For performance and safety reasons, Sea Sonic highly recommends the use of two (or three) separate PCIe cables to connect such cards to the power supply.
     
    (Read the first sentence as High power graphics cards (above 225 Watts) are usually outfitted with two (or three) PCIe connectors, not slots.)
     
    An EVGA RTX 2080 Ti FTW3 ULTRA is a 250-watt card.

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    Re: 2080 TI FTW3 Ultra with x299 mobo, PSU cable question! 2020/02/28 12:24:45 (permalink)
    I have an EVGA SuperNova 1000 P2 PSU and I'm moving from a Z270 FTW (7700K cpu) to a Z390 FTW (9900K cpu) but retaining my MSI GTX 1080 Ti card and with the former mobo, I didn't utilize the extra PCI-E power header and had ZERO issues.

    HEATWARE
     
    Mobo: Asus Z690 Maximus Extreme (BIOS 2103) | CPU: Intel Alder Lake i9-13900K (@6.2Ghz) w/EK-Quantum Velocity² D-RGB Nickel + Acetal | GPU: Evga 3080Ti FTW3 Ultra w/EKWB Quantum Vector | RAM: 64GB DDR5 (2x32GB) Kingston Fury Beast KF556C40BBK2-64 @XMP2 | SSD: 2x WD SN850 2TB NVMe (m.2_2, m.2_3) | Power Supply: EVGA SuperNOVA 1600 P2 | Cooling: Dual Loop 2x EK-Quantum Kinetic TBE 300 D5 PWM D-RGB - Plexi  / HWL 420GTS/Corsair XR5 420 Rads | Case: Corsair 7000D Airflow | OS: Microsoft Windows 11 Pro 64 Bit | Monitor: ROG Strix XG438Q | KB: CORSAIR K100 RGB Optical-Mechanical | Sound: Onboard Realtek via SPDIF (Logitech Z625 THX)

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