SPEEDSTEP, Enhanced Technology for Supported Processors, Precision 670

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SPEEDSTEP, Enhanced Technology for Supported Processors, Precision 670

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August 11, 2013

Dear Fellow Dell hot-rodders,

 

I’ve read the explanations from Wikipedia (http://en.wikipedia.org/wiki/SpeedStep) and the Intel website (http://www.intel.com/support/processors/sb/CS-028855.htm), but I still need some advice from you as to the merits of switching on or off the feature called “SPEEDSTEP” in the Performance section of Setup. It’s off by default. I just installed a pair of higher performance CPUs in my wife’s Dell Precision 670 and when reviewing the setup section, noticed this new
feature which appears with the new CPUs.  Although it sounds like a good thing to save power, plus the resultant heat and wear upon the processor, I wonder
if there is another side to this coin of which to be aware. 

 

Also, I read that the automatic switching will be software controlled.  Is that from embedded chipset software, OS software, or the respective program engaged?  Does anyone know?

Motherboard chipset- Intel Tumwater E7525

Memory - 4GB DDR2 400 ECC registered

CPU - 2 Intel Xeon 3.8 GHz CPU SL8P2 2M/800 64-bit Irwindale

OS – MS 7, 64 bit

 

Thanks, Ray Bramlette

Verified Answer
  • Speedstep OFF clocks down the processor.

    In many BIOS if you Disable speedstep the processor runs at the slowest speed all the time.

    This field enables or disables the INTEL SPEEDSTEP mode of the Processor.

    OFF =  Place the system into the lowest performance state and prevent the intel speed step

    applet or native operating system driver from adjusting the processors CLOCK.

    Enabled  =  Allow the INTEL speedstep enabled CPU to operate in multiple performance states.

    The factory default setting is ENABLED.

    Report Unresolved Customer Service Issues here

    I do not work for Dell. I too am a user.

    The forum is primarily user to user, with Dell employees moderating.

  • Thanks so much. This is a great forum.

    Ray

All Replies
  • Speedstep OFF clocks down the processor.

    In many BIOS if you Disable speedstep the processor runs at the slowest speed all the time.

    This field enables or disables the INTEL SPEEDSTEP mode of the Processor.

    OFF =  Place the system into the lowest performance state and prevent the intel speed step

    applet or native operating system driver from adjusting the processors CLOCK.

    Enabled  =  Allow the INTEL speedstep enabled CPU to operate in multiple performance states.

    The factory default setting is ENABLED.

    Report Unresolved Customer Service Issues here

    I do not work for Dell. I too am a user.

    The forum is primarily user to user, with Dell employees moderating.

  • Thanks so much. This is a great forum.

    Ray