My SATA SSD randomly disconnects and sends me to BIOS

I bought my PC about two months ago, and I’m still pretty new to PC hardware, so I’m not really sure how to fix this.
The problem is that while I’m using my PC, the monitor suddenly freezes after some time. It can happen after 5 minutes, 30 minutes, or sometimes longer. After that, the PC takes me to the BIOS.
When I check the BIOS, it says that there is no SSD detected, so I can’t boot into Windows.
I’m using a SATA SSD, not an M.2 SSD. I already tried connecting the SATA cable to a different SATA port on the motherboard, but the problem still happens.
Interestingly, when Windows is running, I can check the SSD with a drive health/monitoring program and it says the SSD is healthy.
I honestly don’t know what else to try. Could this be a faulty SATA cable, a problem with the SATA power connection, the SSD itself, or something else?
I’d really appreciate any help or suggestions. Thanks!