Questions tagged [speedstep]

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MS-7996 how to turn off SpeedStep?

I have problem with my computer and want to turn off SpeedStep but can't find it in my BIOS. I checked my BIOS but can't find it. Used google but also couldn't find a solution. Anyone has any idea ...
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0answers
3k views

Lenovo T480 with i7-8650U drops down to 399 MHz and stays there

Sometimes, my laptop will suddenly start performing very poorly. I thought it might be overheating, so I checked HWMonitor and saw that the temperatures were fine. What I did see however is that the ...
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1answer
861 views

What could cause “CPU noise” when Intel SpeedStep is enabled in the BIOS power settings? [duplicate]

Whenever I enable the "Intel Speedstep technology" in the BIOS power configuration, I can hear noise when operating the laptop. The noise is sometimes a clicking noise in idle-mode or a buzzing noise (...
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0answers
41 views

CPU Downclocks When Mouse Is Moved

My CPU is Intel i7 6700, I have speed step and all c states enabled. The spec says it can down clock to 0.7 when idle, but for me on a fresh Windows 10 install it ranges between 1.5-1.9. However, if ...
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0answers
266 views

Can Intel CPUs change clock speed on a per-core basis?

Many multi-core Intel CPUs feature both SpeedStep and Turbo Boost, and can therefore run at clock speeds both below and above their base frequency. Can these CPUs control the clock speed per-core, or ...
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1answer
1k views

Granular Control of Intel Speedstep? - Skylake Windows 10

Currently both "Balanced" and "Power saver" power plans claim the minimum processor state is 5%, maximum is 100% and the cooling policy is passive. However on power saver the processor (i7 6700HQ) ...
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0answers
405 views

Speedstep shutting down notebook

I have an old notebook that is having problems regarding random shutdown, caused by speedstep It is a Mirax PR6050 (MSI PR600 rebranded for BR market) with GM965 chipset The CPU is a core2duo T8300 (...
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8answers
36k views

Cpu running half speed

While playing a game few hours ago I noticed my computer suddenly became incredibly slow. The windows task manager showed that the cpu was using half its capabilities. I have been playing this game ...
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1answer
613 views

What is Intel Speed Step technology?

My Samsung N145+ Net book specs say that my Intel Atom Processor N455 supports Speed step technology. Is this something that can be activated or is it always working? Is it just a marketing ploy?
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1answer
567 views

7-zip -v switch will fail to use cpu properly?

I have been using this script for years, back from when above 2 cores was a challenge in 7z and I had just offered myself a shiny i7: "C:\Program Files\7-Zip\7z.exe" u -m5=lzma2 -mmt=8 %1.7z %1 This ...
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2answers
51k views

How to turn off SpeedStep in Windows 7?

I have an Asus N53SV laptop with Windows 7 64-bit. I need to calibrate profiler in NetBeans, and to do that I need to disable functions that lower the CPU frequency in my laptop. I believe it's ...
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0answers
46 views

CPUMON mhz reading weird

I am using this cpu usage monitor: http://www.den4b.com/?x=products&product=cpumon. They give a cpu speed monitor (im assuming to monitor speedstep). However when the computer is idle it seems to ...
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0answers
79 views

Advanced power options - processor power managment [duplicate]

My cpu has p states at 2.3 ghz, 2.1 ghz, 1.1 ghz, and 800 mhz. In the advanced power options-processor power management. Windows allows you to change the percentage. Does this percentage get "rounded" ...
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3answers
20k views

How speed and frequency of a processor are related to each other? [closed]

I think that clock rate of processor determines the speed of core, in my case it is 1.86GHz. But If I am not wrong, it also determines that how much energy it will consume. If you have more frequency ...
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1answer
678 views

How to check the clock speed of Sandy Bridge HD 3000 IGP in OS X?

I am writing a cross-platform OpenGL application and I am experiencing very different performance results between OS X and Windows (both 7 and 8). In Windows GPU-Z reports the Sandy Bridge HD 3000 ...
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2answers
1k views

CPU performance fluctuates wildly

CPU: Intel Core 2 Duo P8400 @ 2.26GHz. I've had this laptop for about 3 years and in the past month I've started getting periodic framerate drops in games. Usually the pattern is random, something ...
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3answers
5k views

Why is Intel Turbo Boost Not Working On My Laptop? (Continued) [duplicate]

This is continuation to previous question **Please read previous question in order to understand my findings.* Okay guys, this is REALLY strange. It seems as Intel Turbo Boost was always working, ...
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6answers
46k views

Why is Intel Turbo Boost Not Working On My Laptop?

Investigation continued Why is Intel Turbo Boost Not Working On My Laptop? (Continued) Dell Latitude E6420 is my laptop with Windows 7 Enterprise. Turbo Boost is enabled in BIOS but is disabled in ...
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4answers
34k views

How to disable SpeedStep for an Intel Core i7 processor?

I'm taking performance measurements of several bits of code. How can I disable SpeedStep on my Core i7 CPU so that the CPU clock speed is constant? I'm not trying to overclock here, and since ...
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6answers
56k views

What regulates Intel SpeedStep CPU throttling? Can I get some control of this on Windows7?

I’m trying to get a big virtual disk file compressed (using WinRar) before I go home today, but my CPU frequency keeps merrily going up and down between the nominal 2.8 GHz and a measly 800 MHz! The ...