You may be exceeding the wattage your PSU can provide since you're possibly pulling 1200 or more watts at the wall if you have aftermarket 580s that can pull 175 watts each. In any case, have you installed all the motherboard drivers as well as AMD GPU drivers? Are you using powered risers? basically you need to give us 100% of your hardware and software information in order for us to be of much help.
Sorry about that yeah
I'm currently using the
Asrock H81 Pro BTC R2
6 x GIGABYTE AORUS Radeon RX 580 DirectX 12 GV-RX580AORUS-8GD 8GB 256-Bit GDDR5 PCI Express 3.0 x16 ATX Video Card
6-Pack PCIe VER 006 PCI-E 16x to 1x Powered Riser Adapter Card w/ 60cm USB 3.0 Extension Cable & MOLEX to SATA Power Cable - GPU Riser Adapter
Intel Celeron G1840 Processor - BX80646G1840
I've been trying multiple things since I configured the rig the with everything plugged in the monitor would not start. So I put the HDMI from the mobo to the Pci-express slot for the 2nd GPU and it actually showed but only 2 of the 6 gpu fans were running but my computer detected 4 gpus. Still trying other things but im at a loss.
I have the 8 pin CPU and the 2 x 4 Pin Molex plugged in as well.