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Switching between 1 GHz and 2 GHz, why?

post #1 of 9
Thread Starter 
Hello, my CPU in my laptop is acting really strange. It keeps switching between 1 GHz and 2 GHz, then it switches back to 1 GHz and so on. Is this normal? The CPU I'm talking about is an AMD Sempron SI-40. It is according to the paper supposed to run at 2 GHz, but that's only the case half the time. About every other second.

Tell me why! Please!
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Tank
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post #2 of 9
Perfectly normal, it lowers to 1 Ghz to save power when it's not needed.
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post #3 of 9
its downclocking when idle to save power.
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post #4 of 9
Put the CPU under load and check if it stays at 2GHz. The downclocking is most likely the Cool N Quiet feature to conserve power and reduce heat.
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post #5 of 9
Thread Starter 
Okay, but is it really supposed to clock up and down that often? It looks like a timer or something. :S
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post #6 of 9
To disable that go into power options and just choose "always on" or "Performance" mode. If you do indeed want it to stop doing that.
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post #7 of 9
Quote:
Originally Posted by DuckieHo View Post
Put the CPU under load and check if it stays at 2GHz. The downclocking is most likely the Cool N Quiet feature to conserve power and reduce heat.
That processor uses "Enhanced PowerNow! technology," Cool 'n Quiet didn't come till later .







LOL, I feel special . Please don't hurt me DuckieHo !
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Intel i5 6600k Gigabyte GA-Z170X-Designaire EVGA GTX 1080 FTW ACX 3.0 16GB Corsair Vengeance DDR4 3200Mhz 
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Dell S2716DG Steelseries 7G EVGA P2 1000w Phanteks Enthoo Pro M Acrylic 
Mouse
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i7 4790k asrock z97e-itx/ac MSI GTX 1060 6GT OC Crucial Balistic ULP DDR3 2x4GB 1600mhz  
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post #8 of 9
Thread Starter 
Quote:
Originally Posted by ChrisB17 View Post
To disable that go into power options and just choose "always on" or "Performance" mode. If you do indeed want it to stop doing that.
I do have the "High Performance" setting on, and it's still doing that.
Tank
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Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 128 GB Western Digital Caviar Blue 1 TB Seagate Barracuda 7200.11 320 GB LG Blu-ray/HD DVD-ROM 
CoolingCoolingOSMonitor
Corsair Hydro H50 w/ Xilence Red Wing XFX "Double Dissipation" cooler Windows 7 Ultimate 64-bit BenQ V2220 
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LG Flatron L204WS Microsoft Sidewinder X6 Antec TruePower Quattro 1000 W Cooler Master HAF X 
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Tank
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Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 128 GB Western Digital Caviar Blue 1 TB Seagate Barracuda 7200.11 320 GB LG Blu-ray/HD DVD-ROM 
CoolingCoolingOSMonitor
Corsair Hydro H50 w/ Xilence Red Wing XFX "Double Dissipation" cooler Windows 7 Ultimate 64-bit BenQ V2220 
MonitorKeyboardPowerCase
LG Flatron L204WS Microsoft Sidewinder X6 Antec TruePower Quattro 1000 W Cooler Master HAF X 
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Roccat Kone[+] SteelSeries Qck+ Creative Sound Blaster X-Fi Titanium SteelSeries Siberia V2 
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post #9 of 9
Its no big deal man really, if it always going to run at 2ghz, its going to eat your battery up like crazy. I am sure this is something you will not even notice performance wise. Let it be man its a laptop, it has several things that help it save power.

heck my P3 laptop is a 1.2ghz. but clocks down to 800mhz when the CPU is not in use.
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