Intel 5400 Series Component Overview, Figure A-1. Isometric View of the 1U Alternative Heatsink

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1U Alternative Heatsink Thermal/Mechanical Design

A1U Alternative Heatsink Thermal/Mechanical Design

Intel has also developed an 1U alternative reference heatsink design for the volumetrically constrained form factor and targeted for the rack-optimized and ultra dense SKUs. This alternative heatsink design meets the thermal profile specifications of the Quad-Core Intel® Xeon® Processor E5400 Series and offers the advantages of weight reduction and cost savings in using this alternative 1U heatsink.

This section describes the alternative heatsink thermal performance and adherence to Quad-Core Intel® Xeon® Processor E5400 Series thermal profile specifications.

A.1 Component Overview

The alternative 1U reference heatsink is an extruded aluminum heatsink and shares the same volumetric footprint as the 1U CEK heatsink. It reuses Intel 1U CEK Captive standoff/screws, Thermal Interface Material (TIM) and Spring.

Figure A-1shows the isometric view of the 1U alternative heatsink.

Figure A-1. Isometric View of the 1U Alternative Heatsink

Note: Refer to Appendix B for more detailed mechanical drawings of the heatsink.

Quad-Core Intel® Xeon® Processor 5400 Series TMDG

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Contents Thermal/Mechanical Design Guidelines Quad-Core Intel Xeon Processor 5400 SeriesQuad-Core Intel Xeon Processor 5400 Series Tmdg Contents Figures Preload Test Configuration Tables Initial release of the document Reference Revision Description Date NumberQuad-Core Intel Xeon Processor 5400 Series Tmdg References ObjectiveScope Term Description Definition of TermsTerms and Descriptions Sheet 1 TDP Terms and Descriptions Sheet 2Introduction Processor Mechanical Parameters Mechanical RequirementsProcessor Mechanical Parameters Table Parameter Minimum Maximum UnitQuad-Core Intel Xeon Processor 5400 Series Package Thermal/Mechanical Reference Design Thermal/Mechanical Reference Design Thermal/Mechanical Reference Design Quad-Core Intel Xeon Processor 5400 Series Considerations Thermal Control Circuit and TDP Processor Thermal Parameters and FeaturesDigital Thermal Sensor Multiple Digital Thermal Sensor Operation Platform Environmental Control Interface PeciMultiple Core Special Considerations PROCHOT#, THERMTRIP#, and FORCEPR# Thermal Monitor for Multiple Core ProductsHeatpipe Orientation for Multiple Core Processors Processor Input Processor OutputFeature Dimension Processor Core Geometric Center DimensionsEquation 2-1.y = ax + b Thermal ProfileEquation 2-2.TCONTROL= -TOFFSET Tcontrol DefinitionTcontrol and Thermal Profile Interaction Thermal Profile B Performance Targets Thermal/Mechanical Reference Design Thermal/Mechanical Reference Design 1U CEK, Thermal Profile B Parameter Maximum Unit2U+ CEK, Thermal Profile a 1U Alternative Heatsink Fan Fail GuidelinesSea-Level Fan Speed Control Characterizing Cooling Solution Performance RequirementsFan Speed Control, Tcontrol and DTS Relationship Processor Thermal Characterization Parameter RelationshipsEquation 2-3.ΨCA= Tcase TLA / TDP Condition FSC SchemeEquation 2-4.ΨCA= ΨCS + ΨSA ExampleChassis Thermal Design Capabilities and Improvements Chassis Thermal Design ConsiderationsEquation 2-5.ΨCA= Tcase TLA / TDP = 68 45 / 85 = 0.27 C/W Equation 2-6.ΨSA= ΨCA − ΨCS = 0.27 − 0.05 = 0.22 C/WHeatsink Design Considerations Heatsink SolutionsThermal/Mechanical Reference Design Considerations Summary Thermal Interface MaterialGeometric Envelope Assembly DrawingStructural Considerations of CEK 17 U+ CEK Heatsink Thermal Performance Thermal Solution Performance CharacteristicsEquation 2-8.y = 0.187*X + Thermal Profile AdherenceEquation 2-9.y = 0.246*X + =0.187* X +40Equation 2-10.y = 0.246*X + 1UCEKReference SolutionHeatsink with Captive Screws and Standoffs Components Overview22. Isometric View of the 2U+ CEK Heatsink Recommended Thermal Grease Dispense Weight CEK Heatsink Thermal Mechanical CharacteristicsThermal Interface Material TIM Processor Minimum Maximum Units24. CEK Spring Isometric View CEK SpringThermal/Mechanical Reference Design Description Min Typ Max Unit Steady Startup Fan Power SupplyFan Specifications Boxed 4-wire PWM/DTS Heatsink Solution Systems Considerations Associated with the Active CEK Boxed Processor ContentsThermal/Mechanical Reference Design Figure A-1. Isometric View of the 1U Alternative Heatsink Component OverviewEquation A-1. y = 0.331*x + Thermal Solution Performance CharactericsThermal Profile Adherence = Processor power value W 1U Alternative Heatsink Thermal/Mechanical Design Drawing Description Table B-1. Mechanical Drawing ListFigure B-1 2U CEK Heatsink Sheet 1 Figure B-2 2U CEK Heatsink Sheet 2 Figure B-3 U CEK Heatsink Sheet 3 Figure B-4 2U CEK Heatsink Sheet 4 Figure B-5. CEK Spring Sheet 1 Figure B-6. CEK Spring Sheet 2 Figure B-7. CEK Spring Sheet 3 Mechanical Drawings Mechanical Drawings Mechanical Drawings Mechanical Drawings Mechanical Drawings Mechanical Drawings Figure B-14 U CEK Heatsink Sheet 1 Figure B-15 U CEK Heatsink Sheet 2 Figure B-16 U CEK Heatsink Sheet 3 Figure B-17 U CEK Heatsink Sheet 4 Figure B-18. Active CEK Thermal Solution Volumetric Sheet 1 Figure B-19. Active CEK Thermal Solution Volumetric Sheet 2 Figure B-20. Active CEK Thermal Solution Volumetric Sheet 3 Figure B-21 U Alternative Heatsink 1 Figure B-22 U Alternative Heatsink 2 Figure B-23 U Alternative Heatsink 3 Figure B-24 U Alternative Heatsink 4 Mechanical Drawings Heatsink Preparation OverviewTest Preparation Alternate Heatsink Sample Preparation Figure C-3. Preload Test Configuration Time-Zero, Room Temperature Preload Measurement Test Procedure ExamplesTypical Test Equipment Table C-1. Typical Test EquipmentPreload Degradation under Bake Conditions Heatsink Clip Load Methodology Safety Requirements Safety Requirements Structural Reliability Testing Environmental Reliability TestingIntel Verification Criteria for the Reference Designs Reference Heatsink Thermal VerificationTable E-1 Use Conditions Environment 2.2 Recommended Test SequencePost-Test Pass Criteria Material and Recycling Requirements Recommended BIOS/Processor/Memory Test ProceduresQuality and Reliability Requirements Supplier Information Intel Enabled SuppliersFor 1U Additional Suppliers2U Heatsink Alternative CEK Copper Fin Alternative CEK Copper Fin Enabled Suppliers Information 100 Quad-Core Intel Xeon Processor 5400 Series Tmdg