Pc no power and no fan spinning

[Maximefort]

Today i've upgraded the motherboard and the cpu, but the pc didn't show any sign of life. What should i do? I think the motherboard i've bought was damaged during the shipping or something.

 

These are the specs

 

Motherboard: Asus b660m-a d4

 

Cpu: i3 12100f (with stock cooler)

 

Ram: Hyperx 2x8gb 3200mhz cl16

 

Gpu: Amd r9 370 4gb

 

Psu: Seasonic CORE GC-500

 

Hdd: Some WD shit

 

 

Did i've done something wrong?

 

 

Edited July 2, 2022 by Maximefort

[Poinkachu]

23 minutes ago, Maximefort said:

Did i've done something wrong?

Without actually knowing exactly what you did step by step, we don't know.

Have you re-checked the PSU switch?
Try replugging the cables.
Re-check the front panel connector, maybe you plug them wrong.
Try powering on by shorting the power pins using a screwdriver, maybe the power on button on the case busted.

All those above good and fine ?
Try doing a PSU test.
Either simply by using your old motherboard & cpu
or by doing the paperclip test (Unplug all cables from your PC parts first, just in case)

[Maximefort]

Done, it was the front panel connector. I plugged it wrong, thanks for your help!