View original (French)

Start motherboard without CPU

High -  
kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   -

Hello, I’m building a new PC and I would like to test the compatibility of my motherboard with the RAM from my previous build. I haven't received the CPU yet, so I connected the motherboard and tried to power it on without the CPU to see with the LEDs if the RAM was detected by the motherboard, but nothing happens when I press the power button.
My motherboard: Asus TUF Gaming B550-Plus
The power supply works (it powered the previous build), the button does too, I’ve connected the 24-pin and 8-pin to the motherboard, and when I turn on the power supply, I see the ambient light of the motherboard, but absolutely no reaction when I press power. Is this normal?
Thank you in advance.

2 answers

  1.
    flo88 Posted messages 28491 Registration date   Status Contributor Last intervention   Ambassadeur 5 170
     

    Hello

    You're trying to start a car without the engine, so that's perfectly normal, and by the way, I don't know who gave you that idea but it's harmful to the motherboard.

    Signature
    Euskadi Ta Askatasuna

    2
    1. High
       

      Oh really, I checked beforehand and there are quite a few sources that say it's doable and none that say it could damage the motherboard.
      Well, I'll wait to receive the CPU then, thanks.

      0
      1. flo88 Posted messages 28491 Registration date   Status Contributor Last intervention   5 170 > High
         

        Your sources know nothing at all

        0
  2. idefix
     

    Hello

    If a motherboard is not designed to start without a CPU, you will have to put back the old CPU and the old RAM. If everything is compatible, you should be able to do something in the meantime.

    0
    1. High
       

      Oh really, so it's possible that it's just the model that's designed not to start at all without a CPU.
      No, my old CPU is not compatible, so I'll wait to receive the new one then.

      0
      1. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 158 > High
         

        Hi

        No PC can start without its processor

        Indeed, where does this ridiculous idea claiming otherwise come from?

        1