08-17-2018 04:31 AM - edited 08-17-2018 04:32 AM
I just bought a 530S with an 2500U processor and when putting it under load the processor downclocks heavily to its base clock as it approches 80°C and then stays at ~65°C until the programm that is producing the load is restarted.
BIOS is on performance setting.
Expected behaviour: dynamic scaling of the CPU frequency depending on the package temperature.
I think this bug also occured in the Ideapad 720S and was fixed ~ month ago.
08-17-2018 07:24 AM
Welcome to Lenovo Community Forums.
Hi. Based on your observation, it does seem like the CPU is throttling due to heat. Looking at the processor specs https://lnv.gy/2L16QRj, the CPU has a max temp of 105°C. Although the CPU can take this much heat, it requires a good cooler to maintain 3.6GHz boost clock. Ideally, the CPU frequency downclocks if the cooling mechanism can’t keep up with the heat. I think this is by design and the BIOS has its thermal tables to protect the computer from overheating.
08-17-2018 09:05 AM