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I7 3770K with core speed limited to 1600Mhz

post #1 of 16
Thread Starter 
hi everybody,


On CPUZ i always see the speed core of 1600Mhz. i have used prime95 to stress the processor i have change bios settings to overclock the system, but the core speed is always locked at 1600Mhz.
i have download Intel Processor Diagnostic Tool and there and i found nothing. when running CPUZ keeps reporting the same core speed. Windows 8 task manager CPU utilization neves goes over 50%, which is +-1600Mhz

i have follow a few guides, like this one http://rog.asus.com/194232013/overclocking/overclocking-guide-4-7ghz-core-i7-3770k-on-the-maximus-v-formula/

and when i Run Prime95 and select the CPU intensive Small FFT test – the CPU should clock up to 3.9GHz, the maximum Turbo Boost frequency for this chip, in my case it never goes up 1.6Ghz

anyone have an ideia what's wrong?


my specs:

i7 3770K
Asus Maximus V EXTREME Intel Z77
G.SKILL TRIDENTX DDR3 2X8GB 2400MHZ CAS10 1.65V

thanks in advance

Jorge
post #2 of 16
Set the BIOS to stock, and retest.
Edited by BradleyW - 4/27/13 at 6:00am
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post #3 of 16
never mind wrong thread
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post #4 of 16
Quote:
Originally Posted by BradleyW View Post

Set the BIOS to stock, and retest.
This, restore defaults and retry.
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post #5 of 16
Thread Starter 
i did that and more...

i have upgrade bios firmware to latest version. ive load defaults setting with no OC at all.

the problem presists..

thanks.
post #6 of 16
Quote:
Originally Posted by IBooNI View Post

This, restore defaults and retry.

Yep, I think it is a good way to start ruling things out.
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post #7 of 16
Quote:
Originally Posted by jlcostinha View Post

i did what and more...

i have upgrade bios firmware to latest version. ive load defaults setting with no OC at all.

same problem.

thanks.

Disable all power saving features in the BIOS and retest. Make sure you test using blend test on the latest version of Prime95 64-bit edition.
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CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
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post #8 of 16
Thread Starter 
i have disabled eveything regarding powersaving, including intel speedstep.

running
prime95 - 64 bits
CPUZ 1.64.0.x64

problem presists...

thanks.
post #9 of 16
Try setting your power settings in Windows to Performance mode or whatever. That should help.
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Phyllis
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Windows 10 64bit Asus PG278Q ASUS VG248QE Logitech G710s 
PowerCaseMouseAudio
Corsair HX1050W Corsair Obsidian Series 900D Logitech G502 Proteus Core  Creative Sound Blaster Recon3D Fatal1ty Profess... 
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post #10 of 16
Thread Starter 
power settings in control panel of windows 8 are set to High Performance.

anyway, i dont think this should be able to affect the processor speed.

thanks
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