![]() If you reduce the multipliers as far as they will go this will disable Turbo Boost while setting numbers between minimum and maximum will reduce the maximum Turbo Boost and thus heat. If you look in the FIVRoption of Throttlestop there is a section to alter the Turbo Boost multiplier limit. Is there any way to limit the CPU clock speed while in TurboBoost? It doesn't need to go all the way to 3.8 GHz though. The down side of this is that when I'm doing normal things with spikey loads like web browsing, it would be nice if I could let that CPU go a bit faster. No power throttling! I can use my computer all day. With TurboBoost disabled, my CPU never goes above 1.9 GHz. While I can't disable TurboBoost with XTU, I found that I could disable it with ThrottleStop. It takes minutes for the Windows start menu to appear when I'm throttled at 400 MHz. ![]() Naturally, I'd rather use my computer at a slower speed for longer, than suddenly landing at 400 MHz. This is a system power limit of some kind. (The CPU never goes above 25%, but it still clocks way up to 3.8 GHz.) I have outright disabled using the Nvidia GPU and instead stick to the Intel graphics, which helps but doesn't totally resolve the problem. Neither does limiting the CPU usage to as low as 25% in the Windows Power Settings. Adjusting the power limits lower in XTU doesn't actually help anything. Intel Extreme Tuning Utility shows power limiting. For example, even opening an application that uses the Nvidia GPU (before it even fully loads) causes the machine to throttle down and the fan to slow or stop. ![]() I have a Lenovo T480 with an Intel i7-8650U, which has the notorious problem of dropping itself down to 400 MHz whenever it feels like it, due to power limits. ![]()
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