Hello. I just got this motherboard but i have the same issue as many people. I got 5 gpus but only shows 4.
I read some information over website and it said update the bios and change the option "enable 4g decoding"
Where is this option for this motherboard... i navigated all over the bios with no luck... please help me... or if it is other solution for me to get the 5 working
You should try some software like 6gpu_mod. I think it should work also on 5 pci-e motherboards. In the past I got this issue on motherboards with 6 pci-e slots.