I am using the same motherboard and using the OC Folder For 300 and 400 Series Motherboards. But I am experiencing so many problems.
My System Configuration is
i9 10850K
Gigabyte Z490 UD
64 GB DDR4 RAM
Gigabyte RX 5700 XT 8 GB OC in X16 Slot
512 GB NVMe SSD for OS
1 TB SSD for My Work Files
2 x 2 TB 7200 RPM HDD for Storage
850 Watt PSU
I am using two monitors
1 : LG 34 inch ultrawide 4k through DP
2 : LG WFHD 34 inch Ultrawide through HDMI
Problems are
1 : When the second monitor is off, system becomes useless. it freezes. not completely but cant move mouse continuously. it become sluggish. The moment i turn on the second monitor, its all back to normal.
2 : Rarely main Screen not getting signals at all. It remains blank. Changing the DP ports fixes the issue.
3 : Randomly changing login window from 4k display to other. (after logging in, the main screen remains the same)
Current OS : BIG SUR 11.1
Also Tried Catalina 10.15.7 First
Here I am attaching the send me file.
https://drive.google.com/file/d/1NBmpgiDTJCxWnS3oGuxOLs_vTS12C8yZ/view?usp=sharing
really appreciate any help. thank you