5th gpu

Hi, So I have 4 x MSI 3080's and 1x MSI 3060 in an ethereum mining rig. I'm using an Asus Z309-A prime motherboard with a western digital easystore SSD. I can get 4 GPU's to work in both Windows and HiveOS, but as soon as I add the 5th, I cant seem to get past bios., and the bootable SSD...