Hi everyone!
I’m building my first mining rig and there are one issue i face it right now that I can’t figure out the solution myself.
Here are the specs:
MB asrock h81 pro btc r2.0
SDD
Intel Celeron G1840 Dual Core 2.8GHZ
8 gb ddr3 ram
MSI AMD Radeon RX 580 ARMOR 4gb
1300w PSU

I have one more GPU the same RX 580 and one more to come. Stil haven’t receive my PCI-E risers, so I want to set up bios, install windows and everything. For that one GPU is enaugh, right?

So I installed everything on my motherboard and it worked very well. I mean fans on CPU, PSU and GPU are rotating and…, … that’s it. Nothing happens. Fans rotate for some time, then slow down and then rotate again as normal. I connected monitor using hdmi straight to GPU - nothing showing. I plugged other monitor using D-Sub connector on MB and nothing. I also noticed that my keyboard I plugged in MB doesn’t work (for example num lock button desn’t light on/off when pressed). I expected to see bios startup, so I could install windows, but nothing.
Do You have any idea where is the problem?
Do You need any additional data to understand where the problem is?

Thanks in advance.