Hidden RTX 50 Overheating: Enthusiasts regain access to hot spot sensors

Users have encountered mysterious performance issues with NVIDIA RTX 50 Blackwell generation graphics cards. Despite the acceptable average temperature indicators, the cards often dropped frequencies or worked incorrectly. It turned out that NVIDIA has officially disabled the function of reading the temperature of the hot spot (Hotspot), which is why popular software such as HWiNFO, MSI Afterburner, GPU-Z and HWMonitor stopped displaying this data in real time.

Controlling local GPU overheating has become more difficult

In the Blackwell architecture, the company left access only to the overall temperature of the GPU and memory indicators. However, without Hotspot control, owners are deprived of the opportunity to quickly notice the degradation of the thermal interface or poor heatsink pressure, which is critical to prevent the chip from failing.

How enthusiasts unlock hotspot scores

Renowned iron repair specialist Paulo Gomez found a way to bring back hot spot monitoring with custom modifications. His repair shop regularly receives RTX 50s with abnormal spikes in fan speed. It turned out that with a normal average temperature of 70-80°C, the Hotspot sensor in the problem cards recorded a value of about 107°C.

At this mark, a protective mechanism is activated, which limits the performance of the chip. Due to the lack of direct contact of the cooler with the crystal or the poor quality of the factory thermal paste, the temperature constantly returns to the critical temperature, provoking throttling.

Repair results and diagnostics

A simple replacement of the thermal paste made it possible to bring down the indicators in the hot spot to 100°C, which fully restored the expected performance of the device. This proves that the sensors themselves are physically present in the RTX 50 series GPUs – NVIDIA has only blocked their software display for the end user.

This problem is a cause for concern, as hidden overheating not only reduces FPS, but can also damage the video card. Experts recommend that NVIDIA unlock this feature through driver updates, following the example of data center solutions where deep diagnostic tools are in full force.