Hi Sandro,
Thanks for your latest report. Clearly the mystery has been solved!
There is certainly no need to apologize for starting this thread. Your
reports are always clear and informative. I learned something from the
follow-ups that several of us did, and perhaps others did too.
Best wishes of the season to all!
-- 73, Joe, K1JT
On 12/22/2014 3:07 PM, Alessandro Gorobey wrote:
> Hi All,
>
> I understand what happen on my Core i5-2430M
>
> see also:
> http://en.wikipedia.org/wiki/List_of_Intel_Core_i5_microprocessors
> http://en.wikipedia.org/wiki/Intel_Turbo_Boost outdated but still valid
>
> The solution is very simple, do not try any benchmark.
> Do not try any repetitive benchmark that head up the CPU
> I found a program that show some hidden parameters, as power, clock and
> temperature.
>
> The frequency of processor is from 600 Mhz (idle) to 2.4GHz (max) up to
> near 3GHz ( turbo boost enable) but depend on external parameters.
> If the temperature go high or the power absorption go over some limits
> the clock go down.
>
> Seem that some instruction need less power, so the strange results.
>
> As written few day ago on desktop computers and processors the
> difference is low as in tables mailed by Joe.
>
> Also GPU do some energy saving (battery operation) to maintain the PC
> temperature low or in some parameters (infamous maximum junction
> temperatureas for CPU).
>
> Pressurizing the bottom of the PC as a tube with a very powerful fan
> (power absorption double of PC and noise as a Jet) minimize problem.
>
> I apologize for the message
>
> Merry Christmas and Happy New Year to All
>
> 73
> Sandro
> IW3RAB
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