« Reply #1 on: September 11, 2011, 02:20:52 AM »
I do a small research.
maybe can help.
EAX=3: Processor Serial Numberhttp://en.wikipedia.org/wiki/CPUIDEAX=3: Processor Serial Number
This returns the processor's serial number. The processor serial number was introduced on Intel Pentium III, but due to privacy concerns, this feature is no longer implemented on later models (PSN feature bit is always cleared). Transmeta's Efficeon and Crusoe processors also provide this feature. AMD CPUs however, do not implement this feature in any CPU models.
For Intel Pentium III CPUs, the serial number is returned in EDX:ECX registers. For Transmeta Efficeon CPUs, it is returned in EBX:EAX registers. And for Transmeta Crusoe CPUs, it is returned in EBX register only.
Note that the processor serial number feature must be enabled in the BIOS setting in order to function.
Other info here...
http://www.rohitab.com/discuss/topic/31080-intel-cpuid-code/Fabio
« Last Edit: September 26, 2011, 03:08:35 AM by iFabio »
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