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Intel X5365 Design Guide - Page 47

Components Overview

UPC - 735858199292

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Thermal/Mechanical Reference Design Figure 2-22. 1U CEK Thermal Adherence to Quad-Core Intel® Xeon® Processor L5300 Series Thermal Profile 60 TCASE_MAX @ TDP Thermal Profile Y=0.360*X+42 55 TCASE_MAX @P _PROFILE_MIN 50 Temperature ( C ) 45 1U CEK Reference Solution Y=0.249*X+40 Note: 2.4.7 2.4.7.1 40 0 5 10 15 20 25 30 P_ PROFILE_MIN 35 40 45 Power (W) 50 TDP Intel has also developed an 1U alternative reference heatsink design. This alternative heatsink design meets the thermal profile specifications of the Quad-Core Intel® Xeon® Processor E5300 Series and Quad-Core Intel® Xeon® Processor L5300 Series and offers the advantages of weight reduction and cost savings in using this alternative 1U heatsink. Refer to Appendix A for detailed information. Components Overview Heatsink with Captive Screws and Standoffs The CEK reference heatsink uses snapped-fin technology for its design. It consists of a copper base and copper fins with Shin-Etsu* G751 thermal grease as the TIM. The mounting screws and standoffs are also made captive to the heatsink base for ease of handling and assembly as shown in Figure 2-23 and Figure 2-24 for the 2U+ and 1U heatsinks, respectively. Quad-Core Intel® Xeon® Processor 5300 Series Thermal/Mechanical Design Guidelines (TMDG) 47

Section	Page
1 Introduction	9
1.1 Objective	9
1.2 Scope	9
1.3 References	9
1.4 Definition of Terms	10
2 Thermal/Mechanical Reference Design	13
2.1 Mechanical Requirements	13
2.1.1 Processor Mechanical Parameters	13
2.1.2 Quad-Core Intel® Xeon® Processor 5300 Series Package	14
2.1.3 Quad-Core Intel® Xeon® Processor 5300 Series Considerations	18
2.2 Processor Thermal Parameters and Features	18
2.2.1 Thermal Control Circuit and TDP	18
2.2.2 Digital Thermal Sensor	20
2.2.3 Platform Environmental Control Interface (PECI)	20
2.2.4 Multiple Core Special Considerations	21
2.2.5 Thermal Profile	24
2.2.6 TCONTROL Definition	25
2.2.7 Thermal Profile Concepts for the Quad-Core Intel® Xeon® Processor 5300 Series	26
2.2.8 Performance Targets	28
2.3 Characterizing Cooling Solution Performance Requirements	33
2.3.1 Fan Speed Control	33
2.3.2 Processor Thermal Characterization Parameter Relationships	35
2.3.3 Chassis Thermal Design Considerations	37
2.4 Thermal/Mechanical Reference Design Considerations	37
2.4.1 Heatsink Solutions	37
2.4.2 Thermal Interface Material	38
2.4.3 Summary	39
2.4.4 Assembly Overview of the Intel Reference Thermal Mechanical Design	40
2.4.5 Thermal Solution Performance Characteristics	42
2.4.6 Thermal Profile Adherence	43
2.4.7 Components Overview	47
2.4.8 Boxed Active Thermal Solution for the Quad-Core Intel® Xeon® Processor 5300 Series	51
A 1U Alternative Heatsink Thermal/Mechanical Design	55
A.1 Component Overview	55
A.2 Thermal Solution Performance Characteristics	56
A.3 Thermal Profile Adherence	57
B Mechanical Drawings	59
C Heatsink Clip Load Methodology	85
C.1 Overview	85
C.2 Test Preparation	85
C.2.1 Heatsink Preparation	85
C.2.2 Typical Test Equipment	88
C.2.3 Test Procedure Examples	88
C.2.4 Time-Zero, Room Temperature Preload Measurement	88
C.2.5 Preload Degradation under Bake Conditions	89
D Safety Requirements	91
E Quality and Reliability Requirements	93
E.1 Intel Verification Criteria for the Reference Designs	93
E.1.1 Reference Heatsink Thermal Verification	93
E.1.2 Environmental Reliability Testing	93
E.1.3 Material and Recycling Requirements	95
F Enabled Suppliers Information	97
F.1 Supplier Information	97
F.1.1 Intel Enabled Suppliers	97