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PC won't power on and I think its the PSU

Discussion in 'Hardware' started by RyanJamesSmith, Jan 8, 2019.

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  1. RyanJamesSmith

    RyanJamesSmith Thread Starter

    Jan 8, 2019
    I just need some other opinions on this.
    So i just finished building a new pc Specs:
    mobo: msi b350 tomahawk
    cpu: ryzen 3 1300x
    gpu: radeon rx 570 8gb
    ram: 16gb ddr4
    120mm fan
    The thing is the PSU is an old one from 2012 from an older gaming pc i had and its only 460w.
    When i plug in the computer to the power supply there is a green light that shows it gets power ut lights up, but when i press the power button on the case, it doesnt turn the computer on at all and the light immediently turns off on the PSU.
    Do you think its the PSU not having enough watts to handle or just bad? or maybe the case button?
  2. crjdriver

    crjdriver Moderator

    Jan 2, 2001
    First of all, have you read the guide at the top of the hw forum for problem builds? If not, do so. If you follow ALL of the steps, you will find the cause of your problem.
    Next the minimum pw supply required is 500W [at least from the specs I found] Do you have another [lower powered] video card you can try?

    Some common errors for new builders;
    1 The 4/8/12pin aux pw connector is not plugged in
    2 Motherboard shorting to the case due to incorrect placement of standoffs
    3 Video card, ram, cpu, etc not seated correctly
    4 Parts not compatible. Does not seem to be the case here
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