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Intel Q9400S Design Guidelines - Page 77

Appendix D, Case Temperature, Reference Metrology

UPC - 735858207973

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Case Temperature Reference Metrology Appendix D Case Temperature Reference Metrology D.1 D.2 Objective and Scope This appendix defines a reference procedure for attaching a thermocouple to the IHS of a 775-land LGA package for TC measurement. This procedure takes into account the specific features of the 775-land LGA package and of the LGA775 socket for which it is intended. The recommended equipment for the reference thermocouple installation, including tools and part numbers are also provided. In addition a video Thermocouple Attach Using Solder - Video CD-ROM is available that shows the process in real time. Supporting Test Equipment To apply the reference thermocouple attach procedure, it is recommended to use the equipment (or equivalent) given in the following table. Item Microscope DMM Thermal Meter Heater Block Heater Transformer Solder Flux Loctite* 498 Adhesive Adhesive Accelerator Kapton* Tape Thermocouple Description Part Number Measurement and Output Olympus* Light microscope or equivalent SZ-40 Digital Multi Meter for resistance measurement Fluke 79 Series Hand held thermocouple meter Multiple Vendors Solder Station (see note 1 for ordering information) Heater assembly to reflow solder on IHS WATLOW120V 150W Firerod Superior Powerstat transformer Miscellaneous Hardware 30330 0212G G1A38L12 05F857 Indium Corp. of America Alloy 57BI / 42SN / 1AG 0.010 Diameter Indium Corp. of America Super glue w/thermal characteristics 52124 5RMA 49850 Loctite* 7452 for fast glue curing 18490 For holding thermocouple in place Omega *,36 gauge, "T" Type (see note 2 for ordering information) Not Available OSK2K1280/5SR TC-TT-T-36-72 Thermal and Mechanical Design Guidelines 77

Section	Page
1 Introduction	11
1.1 Document Goals and Scope	11
1.1.1 Importance of Thermal Management	11
1.1.2 Document Goals	11
1.1.3 Document Scope	12
1.2 References	13
1.3 Definition of Terms	14
2 Processor Thermal/Mechanical Information	17
2.1 Mechanical Requirements	17
2.1.1 Processor Package	17
2.1.2 Heatsink Attach	19
2.1.2.1 General Guidelines	19
2.1.2.2 Heatsink Clip Load Requirement	19
2.1.2.3 Additional Guidelines	20
2.2 Thermal Requirements	20
2.2.1 Processor Case Temperature	20
2.2.2 Thermal Profile	21
2.2.3 TCONTROL	23
2.3 Heatsink Design Considerations	24
2.3.1 Heatsink Size	25
2.3.2 Heatsink Mass	25
2.3.3 Package IHS Flatness	26
2.3.4 Thermal Interface Material	26
2.4 System Thermal Solution Considerations	27
2.4.1 Chassis Thermal Design Capabilities	27
2.4.2 Improving Chassis Thermal Performance	27
2.4.3 Summary	28
2.5 System Integration Considerations	28
3 Thermal Metrology	29
3.1 Characterizing Cooling Performance Requirements	29
3.1.1 Example	31
3.2 Processor Thermal Solution Performance Assessment	31
3.3 Local Ambient Temperature Measurement Guidelines	32
3.4 Processor Case Temperature Measurement Guidelines	34
4 Thermal Management Logic and Thermal Monitor Feature	35
4.1 Processor Power Dissipation	35
4.2 Thermal Monitor Implementation	35
4.2.1 PROCHOT# Signal	36
4.2.2 Thermal Control Circuit	36
4.2.2.1 Thermal Monitor	36
4.2.2.2 Thermal Monitor 2 (TM2)	37
4.2.3 Operation and Configuration	38
4.2.4 On-Demand Mode	39
4.2.5 System Considerations	39
4.2.6 Operating System and Application Software Considerations	40
4.2.7 THERMTRIP# Signal	40
4.2.8 Cooling System Failure Warning	40
4.2.9 Digital Thermal Sensor	41
4.2.10 Platform Environmental Control Interface (PECI)	42
5 Intel® Thermal/Mechanical Reference Design Information	43
5.1 ATX Reference Design Requirements	43
5.2 Validation Results for Reference Design	45
5.2.1 Heatsink Performance	45
5.2.2 Acoustics	46
5.2.3 Altitude	47
5.2.4 Reference Heatsink Thermal Validation	47
5.2.5 Fan Performance for Active Heatsink Thermal Solution	48
5.3 Environmental Reliability Testing	49
5.3.1 Structural Reliability Testing	49
5.3.1.1 Random Vibration Test Procedure	49
5.3.1.2 Shock Test Procedure	49
5.3.2 Power Cycling	51
5.3.3 Recommended BIOS/Processor/Memory Test Procedures	51
5.4 Material and Recycling Requirements	51
5.5 Safety Requirements	52
5.6 Geometric Envelope for Intel® Reference ATX Thermal Mechanical Design	52
5.7 Reference Attach Mechanism	53
5.7.1 Structural Design Strategy	53
5.7.2 Mechanical Interface to the Reference Attach Mechanism	54
6 Intel® Quiet System Technology (Intel® QST)	57
6.1 Intel® Quiet System Technology Algorithm	57
6.1.1 Output Weighting Matrix	58
6.1.2 Proportional-Integral-Derivative (PID)	58
6.2 Board and System Implementation of Intel® Quiet System Technology	60
6.3 Intel® QST Configuration and Tuning	62