Nvidia user reports strange RTX 4080 Super ‘hot spot’ caused by thermal paste issue
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Own an ASUS RTX 4080 Super TUF and notice unusual hot spots? Well, you may not be alone. Some Nvidia users are reporting that a hot spot is appearing on their RTX 4080 Super just mere weeks after purchasing it. The hot spot appears to spike during rendering or gaming sessions, reaching temperatures above 90°C even when the GPU usage is below 100%. Let’s work out what’s going on.

The problem at hand
Now that we have some context behind the issue, let’s expand on why this could be a big problem for RTX 4080 Super users. A hot spot typically represents the hottest point on the GPU chip, and if the overall temperature is below 80°C it is not usually a concern. However, if temperate begins to rise over this threshold then it can cause some damage to the GPU’s output. In this case, with a user reporting temps of over 90°C, this can reduce the efficiency of your GPU hugely and potentially require a replacement.
When taking apart the GPU to investigate the problem, this user found a dried-up spot in amongst the still-liquidized thermal paste. Even after cleaning with isopropyl alcohol, the spot remained. After finally removing it with a plastic scraping tool, the user was able to finally clean up the whole GPU.
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Should Nvidia users be worried?
For the time being, Nvidia users should not be too worried as this does remain an isolated case. With the user reapplying a new thermal paste to the GPU, we are not currently aware that the issue was either fixed or persisted. Additionally, it is unclear if this is a thermal paste problem or a design problem. One thing we do know is that this serves as a good reminder to keep an eye out for the temperature of your GPU and to monitor potential hot spots. You don’t want your brand-new hardware suffering due to unusual problems with thermal paste. We’ll be the first to update you if similar cases are reported by similar users.