I am helping a family member put together a basic Ryzen apu system using a Kolink Sattelite plus M-ITX case. He has already RMA'd the first case thinking he had a faulty power button and got a replacement case in.
When I power up to test it works outside case on the box it came in via screw driver method, bios loads up and I see ram and cpu identified. Nothing else is connected at this stage. When I install it in the case and press power nothing happens. Only power button header connected to motherboard, definitely put the triangle symbol on +positive (or # as manual indicates) but nothing. Am I suppose to wait a few minutes? Also an atx-sfx adapter is used to fix it to case. The case has it's own cable you plug into PSU as it's placed at front of case.
Any ideas what it could be?