I have a Lenovo IdeaPad Gaming 3 with an Intel i7-11370H, and it started overheating severely after I performed a factory reset through Windows Settings. When the laptop is plugged in, the CPU reaches 90–100°C at only about 50–60% usage, sometimes hitting 102°C and thermal throttling badly enough to cause stuttering. When I unplug it, the temperature drops by roughly 30°C at the same apparent usage, and performance actually feels smoother. Unfortunately, the battery lasts only around 15 minutes, so running unplugged is not a practical solution.
I have cleaned the laptop, had a technician inspect and repaste it, reinstalled Windows, installed the chipset and other drivers, disabled Turbo Boost, set the maximum processor state to 93%, and tried limiting power usage to 50 watts. None of these made a meaningful difference. Before the reset, the laptop did not behave this way. What could have changed, and how can I stop the extreme plugged-in temperatures without losing usable performance?
3 Answers
Gaming laptops generally allow the CPU and GPU to draw substantially more power while plugged in. Battery mode restricts power, which naturally lowers temperatures. This model uses an H-series processor and a dedicated GPU in a relatively compact chassis, so it can run very hot under wall power. Undervolting, if the BIOS and software still allow it, or setting a more aggressive fan curve may help, but some thermal throttling is expected.
Disabling Turbo Boost appeared to help previously because it reduced clock speeds, power draw, and performance. A 50-watt limit may not change much because the i7-11370H is designed around roughly 35 watts and many laptops let it boost well above that briefly. The laptop may also be using a different power or performance profile after the reset, causing higher CPU boost behavior. Check Lenovo’s performance modes, Windows power mode, BIOS settings, and chipset or power-management drivers.
I already tried disabling Turbo Boost and lowering the processor limit, but neither changed the temperatures this time. The main difference is that the problem began immediately after the reset.
The cooler unplugged behavior does not necessarily mean performance is identical. Battery mode normally lowers CPU and GPU clocks and power limits, but it can feel smoother because the system is avoiding the severe stutters caused by thermal throttling. Verify that the correct Lenovo power-management and chipset drivers are installed, and compare the actual CPU package power and clock speeds in a monitoring tool. If those settings are correct, the remaining options are undervolting where supported, improving the fan curve, or using a lower sustained power limit.
That makes sense for the smoother behavior, but I am certain the laptop did not run this hot on wall power before the reset. I am trying to find which power or driver setting changed.
I understand that plugged-in temperatures should be higher, but this only started after the factory reset. Before resetting, it stayed much cooler while plugged in.