General Discussions

[Muhammad10]

I have a Lenovo Legion Slim laptop that has a Ryzen 7 7735HS. Lenovo has set the CPU temp limit to 100C in its default power modes, so I want to know if this is safe and will not cause damage or degradation in the long run, as my CPU temps can occasionally exceed the AMD-specified temp limit of 95C when under load. Is it only harmful if temps exceed 95C for extended periods of time, or is it also a problem if they briefly exceed 95C from time to time before going back down? In the long run, can occasionally exceeding 95C cause damage/deterioration, or is it something that one shouldn't worry about? Need some clarity regarding this matter, as Lenovo's set temp limits indicate that they don't seem to think the 7735HS going above 95C is unsafe or an issue.

[FunkZ]

The 7735HS has an AMD manufacturer Tjmax of 95°C

https://www.amd.com/en/products/processors/laptop/ryzen/7000-series/amd-ryzen-7-7735hs.html

At 95°C the CPU will begin to throttle frequency and voltage to keep temperature below that threshold.

This is not configurable by the system integrator. (ie. Lenovo can not circumvent the manufacturer temp limit)

Can you provide evidence of "my CPU temps can occasionally exceed the AMD-specified temp limit of 95C when under load" meaning that the CPU continues to operate above 95°C without throttling?

[Muhammad10]

Yes, the CPU doesn't throttle when it exceeds 95C. I've added a screenshot below of how temps shot up to approximately 100C and stayed there due to running Cinebench R23 (I ended the benchmark after taking the screenshot so that the CPU wouldn't run at 100C for an extended period of time). This is just to show that Lenovo's temp limit means that the CPU doesn't throttle when it reaches 95C and can go all the way up to 100C and stay there. Obviously, the benchmark isn't reflective of my general use, as it pushes the CPU a lot harder than my general use. In general use, average temps are actually good enough, but occasionally, when the CPU is under load, they can briefly go above 95C. The CPU doesn't run at 95+ for extended periods; that would only be an issue if I were to run a benchmark in Performance mode, as benchmarks take time and ensure the CPU continuously runs at its limit. If occasionally crossing 95C isn't something that can cause damage in the long run, I guess Lenovo's temp limit of 100C isn't something to worry about.

[FunkZ]

Use Ryzen Master to confirm Tjmax of 100°C

[Muhammad10]

Ryzen Master is incompatible with my system and doesn't install.

[Muhammad10]

Well, it's good to know that briefly exceeding 95C isn't considered harmful, as that is what I've seen at times (for example, temps may spike up to approximately 95-97C a few times or so in a week) when it comes to my general use of the laptop (with normal usage, the CPU doesn't run at or above 95C for extended periods of time; there may only be the occasional spike). Additionally, average temps are reasonable.