@anthropy gpus can easily draw twice their rated power. AMD had noway of measuring total board power before the 9000 series making the problem worse.
The "correct" solution is overspecing your power supply by a factor of three.
Capping your framerate in the driver/game should be a good enough solution.
@anthropy 340w continues, 680w peak. Assuming no funny business
The overload protection in psu should be about 2x rated power, their does also exist undervolt protection. Gpus slam the power supply hard, peaks of twice rated load in less than a mile seconds. This causes the voltage to drop as the psu can't keep up
Recent NVIDIA gpu is worse. Power supply manufacturers had to change the spec for the 4000 series. The 12 pin is an indicator off those changes being incorporated
@ekg it's not really a problem in games, purely when I do some specific ML workloads that the PSU seems to shit the bed and turn off.. Online everywhere people are saying it should draw around 340W max, which is a bunch, but it should fit with the CPU/mobo/etc in the 850W the PSU can do. I don't want to get a too powerful one either because then it won't be as efficient when the thing is idle (unless you get titanium+ rated ones perhaps?).. But it seems like I might have to.