Recent games have experienced instability.
Recent games have experienced instability.
I built my new PC just a week ago and everything worked fine at first. But after that time, performance dropped. Sometimes controls lagged—like when I press the W key to move forward, it takes a second before responding. This problem shows up in every game and the task manager reports high power usage. Even Roblox has this issue! I’m using my old Corsair 850RMx power supply and the 3080 Ti FE. Anyone have ideas on how to fix it?
Consider your current equipment and usage needs before deciding. Upgrading to 1000 watts might be necessary if you have high-power devices or multiple heavy loads simultaneously.
It sounds like your friend thinks the combined power draw of the GPU and CPU might be the main issue. That could contribute to instability, but other factors like cooling, software settings, or hardware age may also play a role.
Several PSU specialists here can clarify if I'm mistaken. At first glance, the PSU seems suitable. Intel’s 12900k Ark page lists a peak of 241 W under turbo, while Nvidia claims 350 W for a 3080 Ti FE—consistent with tests in Igor's lab. That suggests around 600 W total. Guru3D reports 320 W under heavy multi-core load, which would be about 670 W, leaving roughly 130 W for the rest of your setup. Nvidia advises a 750 W PSU based on a system with 10980XE consuming similar amounts. Adding Corsair’s RMx model, which is known for quality, I believe the power supply should work. It appears capable of delivering up to 850 W on the 12 V rail for both CPU and GPU, assuming the rest of your hardware stays under about 130 W. The main concern with the 3000 series was occasional power spikes that could trigger shutdowns or protections. Have you observed anything unusual? What are your CPU and GPU temperatures over time? Are they running hot? Is RAM utilization normal, or have you tried disabling XMP to rule out unstable overclocks? Are there abrupt drops in clock speeds or spikes in disk activity during slowdowns? Tools like MSI Afterburner or HWiNFO64 can help monitor CPU/GPU speeds and temperatures while gaming.
Ensure your system stays active during highly visual or demanding gameplay sessions.
CPU and GPU can reach up to 80°C. XMP is active, but I plan to turn it off soon. No overclocking has been performed yet.
I also attempted to upgrade the PSU to 1000 watts but there was no improvement.