A leaked internal Nvidia tool, known as MODS (Modular Diagnostic Software), is reportedly allowing users to access previously blocked GPU hotspot sensor data on RTX 50-series graphics cards. This development comes as the current generation of Nvidia GPUs has faced scrutiny regarding limited real-time temperature readings, with only standard GPU and memory temperatures available in common monitoring software like GPU-Z.
According to reports from Brazilian repair channel Paulo Gomes, who claims to have obtained the MODS tool through repair channels and Discord servers, the RTX 50-series GPUs do possess a hotspot temperature sensor. However, this sensor appears to be disabled at the driver level upon system boot. The MODS tool circumvents this driver restriction, thereby enabling users to view precise hotspot temperatures. This capability is particularly useful for diagnosing issues such as misaligned coolers or improper application of thermal paste, which can lead to thermal throttling.
In one documented instance, a Gigabyte RTX 5070 Ti exhibited an average temperature of around 68°C, but its actual hotspot maximum reached 107°C due to poor cooler contact. Following a replacement of the thermal paste and a refitting of the cooler, the hotspot temperature was reduced to 100°C, resulting in improved performance. Such issues with thermal interface material are not unprecedented, particularly with the variety of third-party coolers used on Nvidia's latest GPU offerings, and this marks at least one thermal paste-related problem reported with Gigabyte cards.
The reason for the initial blocking of hotspot data on RTX 50-series cards remains unclear. While some users may face performance or thermal issues stemming from manufacturing or assembly inconsistencies, the widespread availability of the MODS tool raises questions about Nvidia's approach to sensor data. Users seeking to utilize this tool should exercise caution, as downloading unverified software from unofficial sources carries the risk of malware infection.