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CPU Downclocking by itself?

post #1 of 8
Thread Starter 
Hello everyone. I currently have a Core i5 2500k and for benchmarking purposes i often overclock it to 5.4Ghz. So each time i try running Wprime, LinX or any other heavy program, it downclocks to 3.8Ghz giving me lower performance. Temps are not a problem. I disabled Spread Spectrum, speedtest and turbo mode. Is there another relevant setting that causes this?
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The Steeler
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post #2 of 8
Quote:
Originally Posted by tasospaok123 View Post

Hello everyone. I currently have a Core i5 2500k and for benchmarking purposes i often overclock it to 5.4Ghz. So each time i try running Wprime, LinX or any other heavy program, it downclocks to 3.8Ghz giving me lower performance. Temps are not a problem. I disabled Spread Spectrum, speedtest and turbo mode. Is there another relevant setting that causes this?

You have stock cooler and you have your CPU at 5.4GHz. Not sure if serious.. If you really are serious: It downclocks because it's throttling due to the heat.

Edit: If temps really aren't a problem, there might be some power limitations on the motherboard, at least mine has.
Edited by Tuxi - 3/9/12 at 10:29am
post #3 of 8
Yeah, stock cooling at 5.4ghz, we could cook bacon on that hsf
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post #4 of 8
Quote:
Originally Posted by Lazloisdavrock View Post

Yeah, stock cooling at 5.4ghz, we could cook bacon on that hsf

mmm a computer that can cook bacon with out being oil submerged.
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Small wonder.
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post #5 of 8
5.4 on air, :proof: !
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post #6 of 8
Thread Starter 
OK, i am serious, and i am sure this is not due to temps. I noticed it happening at 65 degrees under load even at 4.2Ghz.
Also,
The Steeler
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The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
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post #7 of 8
Quote:
Originally Posted by tasospaok123 View Post

OK, i am serious, and i am sure this is not due to temps. I noticed it happening at 65 degrees under load even at 4.2Ghz.
Also,

But you're using stock cooling, correct?
post #8 of 8
Thread Starter 
I'm bumping this old thread, because now i've got a noctua NH-D14 and i'm experiencing the same issue. Now when i'm overclocked at anything over 4,2Ghz no matter the temps (this happens @ 60c) and when CPU Load reaches 80% the cpu starts downclocking, and if the load goes up to 100% it gets down to 4.2Ghz. I tried with all C3/C6/Speedstep/Turbo/Power Saving/Thermal Throttling options disabled, but this keeps happening. I'm gonna do i bios update in a few hours, just in case. Any other ideas would be much appreciated...
The Steeler
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CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
  hide details  
Reply
The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
  hide details  
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