Errata
44
Specification Update
BG80.
Under Certain Low Temperature Conditions, Some Uncore
Performance Monitoring Events May Report Incorrect Results
Problem:
Due to this erratum, under certain low operating temperatures, a small number of Last
Level Cache and external bus performance monitoring events in the uncore report
incorrect counts. This erratum may affect event codes in the ranges 00H to 0CH and
40H to 43H.
Implication: Due to this erratum, the count value for some uncore Performance Monitoring Events
may be inaccurate. The degree of under or over counting is dependent on the
occurrences of the erratum condition while the counter is active. Intel has not observed
this erratum with any commercially available software.
Workaround:None identified.
Status:
For the steppings affected, see the Summary Tables of Changes.
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