AMD 1207 manual Fans

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Thermal Design Guide for Socket F (1207) Processors

32800 Rev. 3.02 August 2006

Other fan and heat sink combinations may yield adequate thermal performance. The system designer must ensure that the thermal solution provides required cooling for the processor for the given system layout and flow characteristics.

Because the processor-mounting surface extends above the surface of the cam box on the socket, the heat sink bottom can be flat. The heat sink must have a flat surface of at least 40 mm x 40 mm, centered over the processor.

Figure 7 shows the measured thermal performance vs. flow rate for a slightly shorter version of this heat sink (3.5" hole pitch vs. 4.1" hole pitch). This data represents the expected performance of this heat sink on a dual-core socket F (1207) processor. Based on flow tests on the AMD reference 1U-2P system, the flow through the heat sink is estimated to be approximately 20 cubic feet per minute (CFM). Figure 7 shows that this corresponds to case-to-ambient thermal resistance of 0.24°C/W. This case-to-ambient thermal resistance has been confirmed through system thermal tests. The requirement (see Table 4 on page 22) is 0.26°C/W.

Figure 7. Thermal Performance Chart of Heat Sink When Used with a Dual-Core Processor in 90 nm Process

4.3.4Fans

AMD has tested the heat sink described in Section 4.3 on page 22 with a row of five 40 mm x 50 mm x 56 mm fans (Delta Part number GFB0412EHS) in a typical 1U-2P system. The fan has a 27.3-CFM maximum flow rate and a 1.63-inches water maximum pressure head. The heat sinks are ducted so the flow from two fans enters each of the processor heat sinks.

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Thermal Design of Custom 1U-2P Systems

Chapter 4

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Contents Thermal Design Guide for Socket F 1207 Processors Advanced Micro Devices, Inc. All rights reserved Contents Heat Sink Fans Thermal Interface Material List of Figures List of FiguresList of Figures List of Tables List of TablesList of Tables Revision History Revision HistoryRevision History Summary of Requirements Chapter IntroductionChapter Processor Specifications Chapter Processor Thermal SolutionsSocket Description 1207-Pin SocketMotherboard Component Height Restrictions Thermal Solution Design Requirements Sample Heat Sinks and Attachment MethodsPart Description Material Quantity Backplate Assembly Retention Frame Thermal Design of Platforms Using the AMD Processor-In-a Thermal Design of Custom 1U-2P Systems Chapter Thermal Design of Custom 1U-2P SystemsSymbol Systems Exploded View of Thermal Solution for Custom 1U-2P Systems Spring ScrewsHeat Sink Fin ParametersFans Thermal Interface Material Thermal Design of Custom 1U-2P Systems Thermal Design of Custom 2U-4P Systems Chapter Thermal Design of Custom 2U-4P SystemsThermal Solution Design Requirements Heat sink Aluminum Fan Plastic Spring clip Backplate Assembly Spring Clip Chemical Element of SK7 Spring SteelHigh Performance Heat Sink for Custom 2U-4P Systems Fans Thermal Design of Custom 2U-4P Systems Solution for Socket F 1207 Processors Appendix aSocket F 1207 PIB Board Component Height Restrictions 787 64.36 76.41 49.91 59.81Socket F 1207 PIB Socket Outline and Socket Window 724 000 784 520 1892x11.44 2x51.26 2x61.08 1207 PIB Heat Sink HeightZone 36.59 32.13 27.59318 000 885 1207 PIBKeep-Out 10.09 33.91 49.91 Thermal233 Solution for Socket F 1207 Processors Appendix B Socket F 1207 Processor2P Systems Processor Drawings for1207 Height RestrictionsNo-Routing Zone BasedHoles, Contact Pads, 32.16 71.98 24.54 10.09 49.91 64.36Window ProcessorBased on 42.71 82.53 32.16 71.98 1U-2P Systems 1207 ProcessorHeight Restriction Zone Out Keep-Out2P Board No-Through-Hole Keep 598 000 166 40.59 80.4135.04 1207 1U233 335 965 22.04 10.09 33.9 49.91 61.86Socket F 1207 Processor Appendix C Socket F 1207 2U-4P Board Component Height Restrictions 24.54 64.36 4P Mounting Holes, Contact Pads, and No-Routing Zone47.40 87.22 35.65 75.47Socket Window Custom 2U-4P1207 2U-4P Socket Outline 260 2U-4P Systems 1207 Processor17.59 681 266Socket F 1207 2U-4P Board No-Through-Hole Keep-Out 40.59 80.411207 166 80.41Socket F 1207 Processor Appendix D Socket F 1207 ProcessorsStreamline Plot of AMD Reference Custom 2U-4P System