Specifications

Summary Tables of Changes
14 Intel
®
Core™2 Extreme Processor X6800 and
Intel
®
Core™2 Duo Desktop Processor E6000 and E4000 Sequence
Specification Update
NO B1 B2 L2 M0 G0 Plan ERRATA
AI74 X X X X X No Fix An Asynchronous MCE During a Far Transfer May Corrupt ESP
AI75 X X X X Fixed
In Single-Stepping on Branches Mode, the BS Bit in the
Pending-Debug-Exceptions Field of the Guest State Area will be
Incorrectly Set by VM-Exit on a MOV to CR8 Instruction
AI76 X X X X X No Fix
B0-B3 Bits in DR6 May Not be Properly Cleared After Code
Breakpoint
AI77 X X X X X No Fix
BTM/BTS Branch-From Instruction Address May be Incorrect for
Software Interrupts
AI78 X X X X X No Fix
Last Branch Records (LBR) Updates May be Incorrect After a
Task Switch
AI79 X X X X Fixed
REP Store Instructions in a Specific Situation may cause the
Processor to Hang
AI80 X X X X X No Fix
Performance Monitoring Events for L1 and L2 Miss May Not be
Accurate
AI81 X X X X X No Fix
Store to WT Memory Data May be Seen in Wrong Order by Two
Subsequent Loads
AI82 X X X X X No Fix
A MOV Instruction from CR8 Register with 16 Bit Operand Size
Will Leave Bits 63:16 of the Destination Register Unmodified
AI83 X X X X X No Fix
Non-Temporal Data Store May be Observed in Wrong Program
Order
AI84 X X X X X No Fix
Performance Monitor SSE Retired Instructions May Return
Incorrect Values
AI85 X X X X X No Fix
Fault on ENTER Instruction May Result in Unexpected Values on
Stack Frame
AI86 X X Fixed
CPUID Reports Architectural Performance Monitoring Version 2
is Supported, When Only Version 1 Capabilities are Available
AI87 X X X X X No Fix
Unaligned Accesses to Paging Structures May Cause the
Processor to Hang
AI88 X X X X X No Fix
Microcode Updates Performed During VMX Non-root Operation
Could Result in Unexpected Behavior
AI89 X X X X X No Fix
INVLPG Operation for Large (2M/4M) Pages May be Incomplete
under Certain Conditions
AI90 X X X X X No Fix
Page Access Bit May be Set Prior to Signaling a Code Segment
Limit Fault
AI91 X X X X Fixed
Update of Attribute Bits on Page Directories without Immediate
TLB Shootdown May Cause Unexpected Processor Behavior
AI92 X X X X Fixed Invalid Instructions May Lead to Unexpected Behavior
AI93 X X X X X No Fix
EFLAGS, CR0, CR4 and the EXF4 Signal May be Incorrect after
Shutdown
AI94 X X X X Fixed
Performance Monitoring Counter MACRO_INSTS.DECODED May
Not Count Some Decoded Instructions
AI95 X X X X Fixed
The Stack Size May be Incorrect as a Result of VIP/VIF Check
on SYSEXIT and SYSRET