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CPU QDF s-spec string
#1
i need to know where the s-spec or QDF string is come from.
i..e.  SR2P0 or QK3E(intel qualitying sample)
Is that read out of the processor (found no info at cpuid instruction)?
or generated by some specifications of the processor ?
or is that just a table.

thanks for reply
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#2
It's from a table based on several criteria. AFAIK the only CPUs that have the SSPEC/QDF stored in the chip are EX-series Xeons (E7).
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#3
(08-20-2016, 10:46 PM)Martin Wrote: It's from a table based on several criteria. AFAIK the only CPUs that have the SSPEC/QDF stored in the chip are EX-series Xeons (E7).

many thanks.
i have a Xeon E5-2630L v4 QS stepping R0 cpuid 406F1, HWinfo shows s-spec as QK3K(ES2)
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#4
If your base (HFM) clock is 1.7 GHz (not 1.8 GHz), then it's not E5-2630L v4. The 1.7 GHz was just an intermediate ES that doesn't have an official processor name.
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#5
(08-21-2016, 08:53 AM)Martin Wrote: If your base (HFM) clock is 1.7 GHz (not 1.8 GHz), then it's not E5-2630L v4. The 1.7 GHz was just an intermediate ES that doesn't have an official processor name.
thanks again. just ask how that QK3K is build from.
sure it is not exact the 2630L v4 but is has same turbo rates as retail, thats curious.
1 core  x29
2 cores x29
3 cores x27
4 cores x26
5 cores x25
6 cores x24
7 cores x23
8 cores x22
9 cores x21
10 cores x20
with same cpuid and stepping should be declared as pre-QS not ES2 thought.
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#6
No, the CPUID does not determine the exact ES-phase. A single ID can be shared by multiple phases including production.
QK3K is ES2.
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