Re: [Gumstix-users] Overo Fire CPU speed

[Søren S. C. <li...@ss...>]

Overo's are pr default shipped with the 600Mhz OMAP3 version. BeagleBoards
are shipped with the 720MHz (or 1GHz for Beagle XM :-)
The 600MHz mode is however considered an overdrive mode, which might shorten
the devices lifetime (see the datasheet - omap3530.pdf)

Taken from the datasheet (OPP5 = 600MHz overdrive mode):
--------------------------------------------------------
To avoid significant device degradation for commercial temperature
OMAP3530/OMAP3525 devices 
(0°C < Tj < 90°C), the device power-on hours (POH) must be limited to one of
the following:
* 100K total POH when operating across all OPPs and keeping the time spent
at OPP5 to less than 23K POH.
* 50K total POH when operating exclusively at OPP5.
* 44K total POH with no restrictions to the proportion of these POH at
operating points OPP1 - OPP5.
--------------------------------------------------------

I hope this clarified why it's pr. Default configured to 500MHz? - Best
regards
  Søren

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SSC Solutions ApS - Denmark - www.ssc-solutions.dk