New PC turns on but won't boot to BIOS

dommegekke1

Prominent
Oct 24, 2017
2
0
510
Just made a new pc (i3 8100, 8gb, gtx 1060, 256ssd, 1tb hdd) but it won't boot to BIOS. No LED is burning on the motherboard. The monitor shows no signal, tested it on a different pc and it works so it isn't the monitor or HDMI cable. HDMI cable is plugged into the motherboard not the GPU. Only one RAM-stick is plugged in the motherboard. When turn on the DRAM light is on for like 2 seconds and all fans turn on. The light goes off after 2 seconds but the case-, cpufan stay on. PC can only be turned off by turning off the PSU or holding the on button for around 10 seconds. Anyone got any idea what it could be?