Specification Update

Intel
®
Core
™
i5-600, i3-500 Desktop Processor Series and
Intel
®
Pentium Desktop Processor 6000 Series
Specification Update November 2014
52 Document Number: 322911-021US
AAU116. Virtual-APIC Page Accesses With 32-Bit PAE Paging May Cause a
System Crash
Problem: If a logical processor has EPT (Extended Page Tables) enabled, is using 32-bit PAE
paging, and accesses the virtual-APIC page then a complex sequence of internal
processor micro-architectural events may cause an incorrect address translation or
machine check on either logical processor.
Implication: This erratum may result in unexpected faults, an uncorrectable TLB error logged in
IA32_MCi_STATUS.MCACOD (bits [15:0]) with a value of 0000_0000_0001_xxxxb
(where x stands for 0 or 1), a guest or hypervisor crash, or other unpredictable system
behavior.
Workaround: It is possible for the BIOS to contain a workaround for this erratum.
Problem: For the steppings affected, see the Summary Tables of Changes.