Several issues arose after upgrading my PC.
Several issues arose after upgrading my PC.
It seems unclear what the issue might be. VRMs remain warm without overheating, but at these temperatures it shouldn't be an issue. Have you updated to a stable BIOS for your CPU (not a beta)?
I think there are two problems affecting this setup. Problem one is that the Ryzen 9 5900X draws 105 watts, but your motherboard only supports 65 watts for the CPU—this could mean it isn't getting enough power. Problem two is you'll need a larger power supply; at least 1000 watts if not more. Fixing these should make your PC function properly, otherwise the CPU might be faulty.
The board is capable of handling more than 65 Watts. The CPU power supply also got a 1050W unit. A 3080 model would draw about 300W, while a 340W for the CPU would bring the total to roughly 450W, only reaching about 75% of the original 600W PSU. In practice, though, you might want to test it with another motherboard at a friend’s place or a local shop to check for issues like VRM performance, temperatures, chipset compatibility, or power delivery. You could also try limiting the CPU overclock or swapping parts—like replacing the 5900X with a 5700X—to see how it affects stability. There are several approaches you can explore, even if the path isn’t clear yet.
Overclocked reports show 134 watts, while actual readings reach 155 watts. This difference highlights how manufacturers define power usage—TDP usually reflects base performance, not peak loads. Both the 9700K and 9900K models list a base TDP around 95W, but can push to 125W or more during boosts, far exceeding their stated limits. Despite similar core designs (8 cores at 3.6GHz), the variation in power draw underscores differences in real-world performance and thermal behavior.