Intel E8500 User Manual

Intel

E8500 Chipset North Bridge (NB) and eXternal Memory

Bridge (XMB) Thermal/Mechanical Design Guide

8.5

XMB Heatsink Thermal Solution Assembly....................................................................... 38
8.5.1

Heatsink Orientation ........................................................................................... 39

8.5.2

Extruded Heatsink Profiles ................................................................................. 40

8.5.3

Mechanical Interface Material ............................................................................. 40

8.5.4

Thermal Interface Material .................................................................................. 40

8.5.5

Heatsink Retaining Fastener .............................................................................. 40

8.6

Reliability Guidelines ......................................................................................................... 41

Thermal Solution Component Suppliers .......................................................................... 43

Mechanical Drawings ....................................................................................................... 47

Figures

1-1

Thermal Design Process ..................................................................................................... 8

2-1

NB Package Dimensions (Top View) ................................................................................ 11

2-2

NB Package Dimensions (Side View) ............................................................................... 11

2-3

NB Package Dimensions (Bottom View) ........................................................................... 12

2-4

XMB Package Dimensions (Top View) ............................................................................. 13

2-5

XMB Package Dimensions (Side View) ............................................................................ 13

2-6

XMB Package Dimensions (Bottom View) ........................................................................ 14

5-1

Thermal Solution Decision Flowchart................................................................................ 20

5-2

Zero Degree Angle Attach Heatsink Modifications............................................................ 20

5-3

Zero Degree Angle Attach Methodology (Top View)......................................................... 20

6-1

First NB Reference Heatsink Measured Thermal Performance vs.
Approach Velocity ............................................................................................................. 24

6-2

First NB Reference Heatsink Volumetric Envelope........................................................... 25

6-3

First NB Heatsink Board Component Keepout.................................................................. 26

6-4

First NB Heatsink Assembly.............................................................................................. 27

6-5

First NB Heatsink Extrusion Profile ................................................................................... 28

7-1

Second NB Reference Heatsink Measured Thermal Performance vs.
Approach Velocity ............................................................................................................. 32

7-2

Second NB Reference Heatsink Volumetric Envelope ..................................................... 33

7-3

Second NB Heatsink Assembly ........................................................................................ 34

8-1

XMB Reference Heatsink Measured Thermal Performance vs. Approach Velocity.......... 37

8-2

XMB Reference Heatsink Volumetric Envelope ................................................................ 38

8-3

XMB Heatsink Board Component Keepout ....................................................................... 39

8-4

XMB Heatsink Assembly ................................................................................................... 39

8-5

XMB Heatsink Extrusion Profile ........................................................................................ 41

B-1

NB Heatsink #1 Assembly Drawing .................................................................................. 48

B-2

NB Heatsink #1 Drawing ................................................................................................... 49

B-3

NB Heatsink #2 Assembly Drawing .................................................................................. 50

B-4

NB Heatsink #2 Drawing ................................................................................................... 51

B-5

XMB Heatsink Assembly Drawing..................................................................................... 52

B-6

XMB Heatsink Drawing ..................................................................................................... 53