Intel Core i7 Processor I7-940 AT80601000921AA User Manual

Product codes
AT80601000921AA
Page of 102
Datasheet 
11
Introduction
• Intel
®
 64 Architecture — An enhancement to Intel's IA-32 architecture, allowing 
the processor to execute operating systems and applications written to take 
advantage of Intel
®
64. Further details on Intel
®
 64 architecture and programming 
model can be found at 
http://developer.intel.com/technology/intel64/
.
• Intel
®
 Virtualization Technology (Intel
®
 VT) — A set of hardware 
enhancements to Intel server and client platforms that can improve virtualization 
solutions. Intel
®
 VT provides a foundation for widely-deployed virtualization 
solutions and enables a more robust hardware assisted virtualization solution. More 
information can be found at: 
http://www.intel.com/technology/virtualization/
• Unit Interval (UI) — Signaling convention that is binary and unidirectional. In 
this binary signaling, one bit is sent for every edge of the forwarded clock, whether 
it is a rising edge or a falling edge. If a number of edges are collected at instances 
t
1
, t
2
, t
n
,...., t
then the UI at instance “n” is defined as:
UI 
n
 = t 
– t 
n – 1
• Jitter — Any timing variation of a transition edge or edges from the defined Unit 
Interval.
• Storage Conditions — Refers to a non-operational state. The processor may be 
installed in a platform, in a tray, or loose. Processors may be sealed in packaging or 
exposed to free air. Under these conditions, processor lands should not be 
connected to any supply voltages, have any I/Os biased, or receive any clocks.
• OEM  Original Equipment Manufacturer.
1.2
References
Material and concepts available in the following documents may be beneficial when 
reading this document.
§
Table 1-1.
References
Document
Location
Intel
®
 Core™ i7 Processor Extreme Edition and Intel
®
 Core™ i7 Processor 
Specification Update
http://download.intel.
com/design/processor/
specupdt/320836.pdf
Intel
®
 Core™ i7 Processor Extreme Edition and Intel
®
 Core™ i7 Processor Datasheet 
Volume 2
http://download.intel.
com/design/processor/
datashts/320835.pdf
Intel
®
 Core™ i7 Processor Extreme Edition and Intel
®
 Core™ i7 Processor and 
LGA1366 Socket Thermal and Mechanical Design Guide
http://download.intel.
com/design/processor/
designex/320837.pdf
AP-485, Intel
® 
Processor Identification and the CPUID Instruction
http://www.intel.com/
design/processor/appl
nots/241618.htm
 IA-32 Intel
®
 Architecture Software Developer's Manual 
Volume 1: Basic Architecture
Volume 2A: Instruction Set Reference, A-M
Volume 2B: Instruction Set Reference, N-Z
Volume 3A: System Programming Guide, Part 1
Volume 3B: Systems Programming Guide, Part 2
http://www.intel.com/
products/processor/m
anuals/