at the same running temps.Ĭlearly, laptop manufacturers are robbing performance off the top, by inferior cooling hardware and materials. The unmodded machine with the same max-fan-speed software tweak and stock thermal-interface material, throttled to 1.7GHz. Ran mprime (prime95 for Linux) AND Unigine Heaven, alternating, to cure the AS5. Used 'thinkpad_acpi' Linux kernel module to set fan to max speed. Shims between hsf and inductors near CPU and gpu, and shim on the gpu. Copper shim between CPU and hsf, AS5 on both sides. I have two Lenovo W541 laptop workstations with I7-4940MX processors and discrete nVidia graphics. I've developed tried and true mods for lappies and have demonstrated their effectiveness. I prefer the fan to run noisily, and the processor to run at full speed. Over the last 10 years I've found laptops throttle the processor speed in order to keep fan noise down.
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