Underclocking GTX 940MX
Underclocking GTX 940MX
Alright, here’s the situation rephrased: The laptop’s cooling system is extremely poor, causing it to immediately slow down to around 500-600MHz when reaching boost speeds. The boost clock sits at about 1.2GHz, and I’d like to lower it so it doesn’t throttle under load, aiming for something nearer 700MHz before temperatures rise. However, I can’t adjust the base clock offset in nspector beyond -135MHz (or possibly less), and I’m not sure how to change it using MSI Afterburner or NVIDIA’s own tools instead of nspector.
Adjusting the paste is very beneficial. It should be done 1-2 times a year.
Consider reducing CPU usage to minimize heat and GPU consumption.
In the Control Panel, go to Power Options, select Change plan settings, then Advanced power settings, under Processor power management, lower the maximum state until it reaches a comfortable temperature.
Instead of doing that initially,
1. Clean the interior of your laptop and swap the standard thermal paste for a higher-quality one like AS5. This should reduce temperatures by 10-20°C, particularly the paste component.
2. Place a laptop cooler pad on it—any improvement will help. Expect an additional drop of 5-15°C.
3. If available, adjust the GPU's power settings using tools such as MSI Afterburner or NVIDIA software.
I've considered changing the stock paste but the person who usually works on my computer is now employed elsewhere and I'm unsure if they'd have time. For the cooling pad, I have a box fan with good airflow that I could use, though I can't adjust the voltage via nspector, afterburner, or NVIDIA settings—though I can increase the voltage offset in nspector, which then resets to zero when I try to lower it.
Adjusting the paste is very beneficial. It should be done 1-2 times a year.
Consider reducing CPU usage to minimize heat and GPU consumption.
In the Control Panel, go to Power Options, select Change plan settings, choose your current plan, then adjust advanced power settings. Under processor power management, lower the maximum state until it reaches a comfortable temperature.