Question Losing Display while the PC is still on

[Empressed]

I had this problem for a while now, on some occasion my PC display would suddenly turn off while the power is still on so I have no choice but to force shutdown it. Tried reaching out to other Tech specialist if they could pinpoint what's the problem I am having but none of them could fix and figure out what's causing this inconvenience. I recently replaced my Motherboard, Power Supply and Graphics card and used a UPS if the issue would persist but sadly, it didn't. I wonder if anyone in these forums could have an idea of what I am currently experiencing.

PC Specs:
R7 1800x
16GB ram
RTX 3070
850W

 

[Lutfij]

850W
850W is the advertised wattage of the PSU. Make and model of your PSU and it's age?

I recently replaced my Motherboard, Power Supply and Graphics card
Might want to provide a before and after of your specs, like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:

two sets will help distinguish what was before and what was after. Also, did you reinstall the OS after the presumed motherboard swap?