PC shuts down repeatedly due to high frame rates.
PC shuts down repeatedly due to high frame rates.
I kept the advice in mind and reduced the GPU's power to 80%, which helped me avoid crashes. It’s still important to check performance across more games to confirm the change. Regarding your PSU, it might have slightly worn down over time, but it likely hasn’t failed completely yet.
You can't always be sure about these issues. In fact, many users with RTX 3090 graphics cards faced difficulties when they launched. Some experienced crashes even with powerful 1000W power supplies from reputable brands. The real issue seems to be that your PSU's capacitors have worn out and can no longer handle the same power demands. When your GPU suddenly needs a huge surge, the capacitor struggles and overcurrent protection activates. This isn't a simple case of a broken PSU—it’s more complex, involving changes in how current behaves or other components shifting. If you’ve seen similar graphs before, capacitors act like they soften sharp spikes in current. Alternatively, something else might have changed, such as inconsistent Vsync settings or other hardware adjustments. In your situation, sticking with the underpower or undervolt setting makes sense. You could also consider replacing the PSU, though it would cost a lot and likely only improve performance by a few percent at most. Probably not worth it unless you invest time in undervolting.