Specification Update

Summary Tables of Changes
Specification Update 27
Steppings
NO.
B-1 CPU
Signature
= 06D6h
C-0 CPU
Signature
= 06D8h
B-1 CPU
Signature
= 0695h
C-0 CPU
Signature
= 06E8h
D-0 CPU
Signature
= 06ECh
B-2 CPU
Signature
= 06F6h
A-1 CPU
Signature
= 10661h
Plans
ERRATA
W145 X Plan Fix Performance Monitoring
Event
CPU_CLK_UNHALTED.REF
May Not Count Clock
Cycles According to the
Processors Operating
Frequency
W146 X X Plan Fix Performance Monitoring
Event BR_INST_RETIRED
May Count CPUID
Instructions as Branches
W147 X X No Fix Performance Monitoring
Event
MISALIGN_MEM_REF May
Over Count
W148 X X No Fix A REP STOS/MOVS to a
MONITOR/MWAIT Address
Range May Prevent
Triggering of the
Monitoring Hardware
W149 X X Plan Fix False Level One Data
Cache Parity Machine-
Check Exceptions May be
Signaled
W150 X X No Fix A Memory Access May Get
a Wrong Memory Type
Following a #GP due to
WRMSR to an MTRR Mask
W151 X X No Fix PMI While LBR Freeze
Enabled May Result in
Old/Out-of-date LBR
Information
W152 X X X X X X X No Fix Performance Monitoring
Event
FP_MMX_TRANS_TO_MMX
May Not Count Some
Transitions
W153 X X No Fix A WB Store Following a
REP STOS/MOVS of
FXSAVE May Lead to
Memory-Ordering
Violations