Thermal/Mechanical Design Guide
3
Contents
1
Introduction .............................................................................................................. 9
1.1
References ....................................................................................................... 10
1.2
Definition of Terms ............................................................................................ 10
2
LGA1366 Socket ...................................................................................................... 13
2.1
Board Layout .................................................................................................... 15
2.2
Attachment to Motherboard ................................................................................ 16
2.3
Socket Components ........................................................................................... 16
2.3.1
Socket Body Housing .............................................................................. 16
2.3.2
Solder Balls ........................................................................................... 16
2.3.3
Contacts ............................................................................................... 17
2.3.4
Pick and Place Cover............................................................................... 17
2.4
Package Installation / Removal ........................................................................... 18
2.4.1
Socket Standoffs and Package Seating Plane.............................................. 18
2.5
Durability ......................................................................................................... 19
2.6
Markings .......................................................................................................... 19
2.7
Component Insertion Forces ............................................................................... 19
2.8
Socket Size ...................................................................................................... 19
2.9
LGA1366 Socket NCTF Solder Joints..................................................................... 20
3
Independent Loading Mechanism (ILM)................................................................... 21
3.1
Design Concept................................................................................................. 21
3.1.1
ILM Cover Assembly Design Overview ....................................................... 21
3.1.2
ILM Back Plate Design Overview ............................................................... 22
3.2
Assembly of ILM to a Motherboard ....................................................................... 23
4
LGA1366 Socket and ILM Electrical, Mechanical, and Environmental Specifications . 27
4.1
Component Mass............................................................................................... 27
4.2
Package/Socket Stackup Height .......................................................................... 27
4.3
Socket Maximum Temperature ............................................................................ 27
4.4
Loading Specifications........................................................................................ 28
4.5
Electrical Requirements ...................................................................................... 28
4.6
Environmental Requirements .............................................................................. 29
5
Thermal Solutions ................................................................................................... 31
5.1
Performance Targets.......................................................................................... 31
5.1.1
25.5 mm Tall Heatsink ............................................................................ 32
5.2
Heat Pipe Considerations .................................................................................... 33
5.3
Assembly ......................................................................................................... 34
5.3.1
Thermal Interface Material (TIM) .............................................................. 35
5.4
Structural Considerations ................................................................................... 35
5.5
Thermal Design................................................................................................. 35
5.5.1
Thermal Characterization Parameter ......................................................... 35
5.5.2
Dual Thermal Profile ............................................................................... 36
5.6
Thermal Features .............................................................................................. 37
5.6.1
Fan Speed Control .................................................................................. 37
5.6.2
PECI Averaging and Catastrophic Thermal Management............................... 38
5.6.3
Intel® Turbo Boost Technology ................................................................ 39
5.7
Thermal Guidance ............................................................................................. 39
5.7.1
Thermal Excursion Power for Processors with Dual Thermal Profile ................ 39
5.7.2
Thermal Excursion Power for Processors with Single Thermal Profile .............. 40
5.7.3
Absolute Processor Temperature .............................................................. 40
6
Quality and Reliability Requirements ....................................................................... 41
6.1
Test Conditions ................................................................................................. 41
Summary of Contents for X5550 - Quad Core Xeon
Page 8: ...8 Thermal Mechanical Design Guide ...
Page 12: ...Introduction 12 Thermal Mechanical Design Guide ...
Page 24: ...Independent Loading Mechanism ILM 24 Thermal Mechanical Design Guide Figure 3 3 ILM Assembly ...
Page 26: ...Independent Loading Mechanism ILM 26 Thermal Mechanical Design Guide ...
Page 48: ...Component Suppliers 48 Thermal Mechanical Design Guide ...
Page 82: ...Mechanical Drawings 82 Thermal Mechanical Design Guide ...
Page 88: ...Socket Mechanical Drawings 88 Thermal Mechanical Design Guide ...