-----Original Message----- From: Jukka Ruohonen <jruohonen@xxxxxx> > On Tue, Jul 24, 2012 at 02:01:53PM +0200, Thomas Renninger wrote: > > For some reason some BIOSes export the highest frequency twice (or > with > > one HZ difference or similar). > > I think this is because of the so-called Turbo Boost. I recall at least > couple of Intel specifications or white papers in which it was adviced > that > BIOS vendors should report the "turbo state" as the maximum + 1 MHz. > > - Jukka. I found that, effectively, the speeds are reported with a difference of 1 MHz: $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 2534000 2533000 1600000 800000 But Turbo Boost technology is not present in my new processor: http://ark.intel.com/products/35562/Intel-Core2-Duo-Processor-T9400-%286M-Cache-2_53-GHz-1066-MHz-FSB In fact, as far as I know, no processor supported by this motherboard has it: http://www.intel.com/es_la/assets/PDF/datasheet/320122.pdf BIOS issue? The laptop is a Sony Vaio VGN-SR210J, BIOS R1130Y1 (latest to this day). -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
