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  1. #1
    New ROGer Array
    Join Date
    Jun 2020

    CPU Power 8 vs 8+4

    I'm putting together a new build:
    Rog Strix Z490 - E / I9-10900K / GTX3*** (upon release) / Corsair HX850

    I have 2 CPU cables, both 8 Pin (splitable into 2x4). The manual says you can hook up either the 8 pin or 8 + 4. I don't plan to do heavy overclocks, but im curious what the pros and cons are of hooking up just the 8 vs hooking up both 8+4. Everything i've read seems to indicate that the 8 pin is typically enough, but is there a downside to splitting one 8pin into 2x4 and hooking it up?


  2. #2
    ROG Guru: Orange Belt Array ninezerofive PC Specs
    ninezerofive PC Specs
    Laptop (Model)Laptop ? Ewww
    MotherboardMaximus XI Apex
    Processori7-9700K @ 5.2
    Memory (part number)Trident Z Royal 4000 / 2x8GB @ C17
    Graphics Card #1ROG Strix 1070 OC
    Storage #1Corsair MP510 960 GB
    Storage #2Seagate 3TB
    CPU CoolerROG Ryuo 240
    CaseROG Helios
    Power SupplyROG THOR 850W
    Keyboard ROG Claymore
    Mouse ROG Pugio
    Headset ROG Cerberus
    Mouse Pad ROG Whetstone
    Accessory #1 ROG Terminal
    ninezerofive's Avatar
    Join Date
    Nov 2018

    Well, technically you could spread the load on two cables instead of one. But apart from minor heat decrease it won't give you much. Also depends on your PSU. If you have one big rail in it it's alright, but if there's multi then running one connector might be actually better.

    If I am not mistaken then one 8 pin top out at 390 smth watts. So even the power hungry 10900k should be alright on one. (I think they managed to decrease the the maximum wattage to 350w)

    Hope that helps.

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