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Title: Solution to plug more than 4 GPUs in a Prime Z390-A or Prime Z390-P motherboard Post by: Didz on March 25, 2021, 07:40:11 PM I spent almost a week trying to figure out why I was not able to plug more than 4 GPUs on my mining rig using HiveOS. I couldn't found solution for my issue anywhere so I thought why not sharing it on Bitcointalk to help other GPU miners.
So I have these 6 GPUS: 5 X ASUS Dual GeForce GTX 1660 SUPER OC Edition 1 X EVGA GeForce GTX 1660 SUPER SC ULTRA GAMING I first tried to fix my issue by plugging each GPU directly on my Prime Z390-P motherboard but because the PCIe x16 slot was not reinforced I broke it. I bought another motherboard, this time the Prime Z390-A. After countless trials and errors what finally fix my issue was to set these settings in the BIOS: - PCIe Speed : Gen2 (for all the PCIe slots) - 4G Decoding : Enabled - CSM Support : Disabled I hope this post might be helpful for someone stuck with the same problem. |