Pc won't turn on - new psu did nothing

[mickyflinn]

Delivered today. Put it in and fired up using old PSU.

However I can't get any of the screens to show anything, and can't get mouse or keyboard to show any power, and keyboard is backlite so should at least show that. Plugging mouse and keyboard into my laptop works fine. Plugging in my streamdeck into any USB slot works no issues. So wtf that's about I've no idea

Also holding down the power button on the case no longer turns the pc off. It turns the pc on but only way to power down the pc is switch it off from the psu button. When folding the cases power button (the one on top that turns the pc on), after a few seconds it starts flashing so it recognises that I'm holding the button, just then it doesn't do anything

Any suggestions what I've done wrong?

Pull the motherboard out of the case and build on the motherboard box to test in case there a short.

You can start the pc but putting a screwdriver across the power on pins o the motherboard

 

[darael]

Pull the motherboard out of the case and build on the motherboard box to test in case there a short.

You can start the pc but putting a screwdriver across the power on pins o the motherboard

Also check you don't have any extra stand offs for the motherboard in the case. To be honest, I don't remember the last time I had to change the stand offs in my case, but it's worth checking anyway.

 

[unwashed potato!]

It's working now.

For those in the distant future (has trump clocked it yet?, please tell me it involved stairs and many bounces) who Google and have an issue with this board, I don't know what solved it, but here's what I did.

I removed the 2 sticks of ram, gpu, and wifi card. This now allowed the pc to boot up and keyboard was showing power. Put them back one device at a time and it was fine each time. I suspect I had the gpu either not sat properly, or more likely, the power cables were incorrectly put it.

Thanks all anyway for the help.