Heres my rig. I have built this s#itty case, my uncle is a carpenter so he will make a better one very soon, it's just temporary.
I couldn't get the 6th GPU to run. 5 work fine, but plugging the 6th in the system and powering the rig on, only the fans spin, my keyboard / mouse don't light up, and monitor stays in sleep mode.
Then I am forced to unplug all GPUs, along with the CMOS battery, then plug back only CMOS after 2-3 minutes and power the RIG, configure the BIOS, turn off the PC, plug 5 of my GPUs back in and it's working.
I have contacted ASRock to see if this can be resolved.
Anyone here however has any idea what's causing this?