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SOLVED by @jj122@lemmings.world

Make sure all power connections on the mb are made (there are more than just the 24 pin).

I hadn’t connected the PSU CPU cable. Now it works: https://streamable.com/9bwg1k

Also thanks guys for suggesting the dual channel slots spacing between the memories.

Thanks everyone. You’re all wonderful.

See video https://streamable.com/agio65

PC SPECS:

  • @jj122
    10•5 months ago

    Some things I would double-check:

    • Make sure only the correct mb standoffs are installed and all of the correct standoffs are installed and used. Looks like there is an unused mount in one of your pictures.
    • Make sure all power connections on the mb are made (there are more than just the 24 pin).
    • If using a modular power supply, make sure you have the wires plugged into the correct plugs on the ps. Pcie cables might fit into the mb aux or SATA connector plugs.
    • Final step is taking everything out and installing the minimum viable components. So one stick ram, no expansion cards, only boot drive, etc.
    • @lindafjwj@lemmy.todayOP
      7•5 months ago

      Make sure all power connections on the mb are made (there are more than just the 24 pin).

      Ohh mate that was it. I hadn’t connected the PSU CPU cable. Now it works: https://streamable.com/9bwg1k

      Thank you so much!!

      Make sure only the correct mb standoffs are installed and all of the correct standoffs are installed and used. Looks like there is an unused mount in one of your pictures.

      Well noticed. I totally forgot to move the 2 remaining MB standoffs. Thank you so much!!