i9, 32gig, 2800Super, m2 SSD, 650w gold rated psu. Running 1080p 144hz.
I get hard reset after about 20 minutes if ray tracing is on. If I turn it off, the game never crashes. I even tested this by just standing still while npc's walked passed me on the street. I let the game sit there, no menu or anything and it hard reset the PC as if I pushed the reset button on the motherboard.
(Side note: When the game first came out, it would not hard reset when ray tracing was on. Rather, it would crash and cyberpunk would say something like the game flatlined. Then you hit report and the game would shut down, but it would not restart the PC. Now it restarts the PC.
However...
The game used to crash after only 2 to 30 seconds with ray tracing on. Then I opened my PC, unplugged the power cables to the card, and the same plugs to the psu. It is fully modular. That now made it so I can run the game for 20 minutes with ray tracing.
I have a new PSU 750w coming to see if that fixes the issue.
I ran the Heaven test and passed, but the lowest fps has me concerned.
i9-9900
2080 RTX Ti
2x M2 NVMe 1 TB
850x Gold PSU
32 GB RAM
Custom oversized rig with hybrid cooling and compartmentalized components
My 15th or so custom rig that I hand built.
As of TODAY (11 JAN 2021), my computer has gone from crashing out of the game intermittently and infrequently (where just the game crashes) to hard rebooting the computer regularly. I am unable to enjoy/play the game for much more than 10 minutes at a time before it reboots my computer.
While there are various reasons a computer can reboot, and to clarify what other posters are assuming, an application can ABSOLUTELY cause a computer to reboot. Applications consume resources that an OS is supposed to manage; however, because of how code works, an app can make a request that the computer thinks it can provide resources for, when it cannot (an example would be for a config that doesn't exist, but through bad coding, the application thought it did and through bad management, the OS and the app attempt to fulfill that resource).
CP2077 - the beauty of the game was more than enough to make up for intermittent game crashes. It is NOT good enough to make up for consistent and regular OS/Computer crashes.
As an original player of the tabletop game back in the 90s (I still have my original RPG books) and a fan of the CP concept and stories (including creator of my own stories that I GM'd), it has been terribly, terribly disappointing trying to play this game through the bugs. I suppose it at least makes the lack of story more tolerable and the terrible 'forced' relationships excusable.
Troubleshooting:
Updated Drivers
Changed Graphics settings (game defaults to Ultra RT, but I have disabled RT and still no luck)
Event Viewer review