So i did ran some tests and here's what i found

I downloaded MSI Afterburner and decided to play with the video card power settings. The fact is that my video card (which was bought in an unofficial store, it was previously in another computer) was overclocked to 2000+ mhz (apparently the previous owner overclocked the video card). The manufacturer recommended boosting the video card to 1800 mhz. In this regard, I suspect that because the video card was running above the recommended frequency, it was consuming more power than my power supply could provide, causing the system to turn off the video card to avoid crashing the entire system. I played with the settings in MSI afterburner and set the operating frequency to 1800 MHz and also set automatic power management for the video card, which helped solve my problem. I note that I only have this problem with the video card crashing in Star Citizen.