Wrong CPU being shown by the BIOS

[Franc Zabkar]

The Intel utility identification of Intel(R) Xeon(R) CPU 4812 @ 1.60GHz
is also bogus, as I tried looking on processorfinder.intel.com
and there is no X4812 that I could find. So even the Intel
utility is being fooled by something. But exactly
what, I cannot tell you.

There is a bootable OS-independent version of the PIU:
http://www.intel.com/support/processors/tools/piu/sb/CS-015823.htm

That should eliminate Windows as a source of obfuscation, if that is
possible.

- Franc Zabkar

 

[Franc Zabkar]

There is a field in the "Branding String" with
provision for indicating a Xeon. The above doesn't provide
the raw data from the processor, to see whether that is
what is being returned.

This utility displays raw CPU_ID data:
http://www.cpuinfo.de/index.php?lang=en&category=1&articleid=2

These are the raw data for an AMD Athlon 64 Processor 3500+:
http://www.cpuinfo.de/cpuinfo/pic/en_cpuid.gif

- Franc Zabkar