Question 3 monitor setup not getting signal when PC restarts ?

[Govdubz]

I just finished a new build where I included 3 x MSI G321CU monitors. I cant seem to figure out why they won't put out a signal when I restart the pc. My system is asus x670e mb, asus 4090 strix gpu, amd 7800x3d, g.skill ddr5 think like 6500 but not sure ATM. Had it originally on only 2 monitors with using hdmi and no problems, switched to display port cables with no problems. Then I installed the 3rd monitor, now they won't turn on unless I unplug one of the 3 from the gpu and do a fresh restart. When I turn the pc on they all turn on for a sec showing dp input used then the just go to sleep. I tried turning them off and on again before and after restart but nothing happened still. Any ideas?
Thanks in advance

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

I would look into running DDU to remove all GPU drivers from your platform, then manually reinstall the latest drivers sourced from Nvidia's support in an elevated command, i.e, Right click installer>Run as Administrator.