Upset box funnel 4 gpu motherboard You will get better Stressful Patriotic
For GIGABYTE GA-P41T-ES3G Motherboard LGA775 2*DDR3 4-GPU Slot System ATX Board | eBay
This X570S Motherboard Comes With a Built-in GPU Holder | Tom's Hardware
I use a ASUS Prime Z390-P Motherboard for 6 GPU. Currently i can't use more than 4 gpu at the same time. Maybe i have to change some settig in the Bios.
GIGABYTE -
LGA 2011 ASUS Rampage IV Formula/BATTLEFIELD Motherboard eSATA Multi-GPU Support
ASUS TUF Gaming Z690-PLUS WIFI D4 LGA 1700 ATX Motherboard, 15 DrMOS, PCIe 5.0, DDR4 RAM, Four M.2 slots, Intel WiFi 6, Front USB 3.2 Gen 2 Type-C, Thunderbolt 4 Support and