23:02 Asus is using a led indicator on top of the power connector. It will alarm if the voltage of the rail drops to low (any transients not just lower power/wattage). Or if the PSU wasn't able to deliver power fast enough as a result of fast load changes. Which can cause a drop in needed voltage. This isn't just about not having enough wattage alone. Which can contribute to blackscreens, crashes, etc. And it's not limited to just the 3080 GPU either although it's demonstrated with it. It would be nice to see this on all GPUs though. As he indicates if you've been running your PSU hard (IE: running the PSU at it's peak performance rating for example) the voltage regulation may no longer be adequate for the fast load changes that are required (for most GPUs...again this isn't limited to just the 3080). Again, I would never recommend someone buy a psu with just enough peak power to run your PC.