Question Computer is on, but monitors randomly losing signal. GPU issue?

Apr 13, 2023
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Hello guys, i need some advices with the problem that i have. I have 2 - 2k monitors connected to my 3080 GPU both with NEW display port cables ( i just changed them ).

Randomly my both monitors are losing signal when i am in desktop or ingame, but the computer still works in background ... i can hear music for instance if i listen to spotify.

In order to make it work again, i need to restart the PC. Sometime when i restart pc the GPU fans starts spining very fast and then restart. After restart i am asking if i want to LOAD BIOS OPTIMIZED DEFAULTS.

I've changed display port cables, ive reinstall clean gpu drvers, ive tried unplug monitors and change ports on gpu, but nothing worked. Do you guys think is a GPU issue?

Thx in advance for your answare.
 
Full system specs with make, model and how old is the PSU. Nvidia's 2000 and 3000 cards have some funny power spikes that play hell with PSU.
CPU: I9 13900KF
MB: Gigabyte Z790 Gaming
Ram: Corsair 32GB 6000mhz
GPU: GigaByte 3080
PSU: GIGABYTE P850GM, 80+ Gold, 850W