User's Manual
4     Thermal and Mechanical Design Guidelines 
Figures 
Figure 1. (G)MCH Non-Grid Array......................................................................12 
Figure 2. 0° Angle Attach Methodology (top view, not to scale)..............................16 
Figure 3. 0° Angle Attach Heatsink Modifications (generic heatsink side and bottom 
view shown, not to scale)...........................................................................
16 
Figure 4. Airflow Temperature Measurement Locations .........................................17 
Figure 5. Processor Heatsink Orientation to Provide Airflow to (G)MCH Heatsink on an 
ATX Platform............................................................................................
20 
Figure 6. Processor Heatsink Orientation to Provide Airflow to (G)MCH Heatsink on a 
Balanced Technology Extended (BTX) Platform..............................................
21 
Figure 7. ATX GMCH Heatsink Installed on Board.................................................22 
Figure 8. Balanced Technology Extended (BTX) GMCH Heatsink Installed on Board...23 
Figure 9. (G)MCH Package Drawing ...................................................................28 
Figure 10. (G)MCH Component Keep-Out Restrictions for ATX Platforms .................29 
Figure 11. (G)MCH Component Keep-Out Restrictions for Balanced Technology 
Extended (BTX) Platforms ..........................................................................
30 
Figure 12. (G)MCH Reference Heatsink for ATX Platforms – Sheet 1 .......................31 
Figure 13. (G)MCH Reference Heatsink for ATX Platforms – Sheet 2 .......................32 
Figure 14. (G)MCH Reference Heatsink for ATX Platforms – Anchor ........................33 
Figure 15. (G)MCH Reference Heatsink for ATX Platforms – Ramp Retainer Sheet 1..34 
Figure 16. (G)MCH Reference Heatsink for ATX Platforms – Ramp Retainer Sheet 2..35 
Figure 17. (G)MCH Reference Heatsink for ATX Platforms – Wire Preload Clip ..........36 
Figure 18. (G)MCH Reference Heatsink for Balanced Technology Extended (BTX) 
Platforms.................................................................................................
37 
Figure 19. (G)MCH Reference Heatsink for Balanced Technology Extended (BTX) 
Platforms – Clip........................................................................................
38 
Figure 20. (G)MCH Reference Heatsink for Balanced Technology Extended (BTX) 
Platforms – Heatsink Assembly ...................................................................
39 
Tables 
Table 1. (G)MCH Loading Specifications..............................................................12 
Table 2.  (G)MCH Case Temperature Specifications .............................................13 
Table 3.  (G)MCH Thermal Design Power Specifications........................................14 
Table 4.  Reference Thermal Solution Environmental Reliability Requirements.........24 
Table 5.   (G)MCH ATX Intel Reference Heatsink Enabled Suppliers.........................25 
Table 6.   (G)MCH Balanced Technology Extended (BTX) Intel Reference Heatsink 
Enabled Suppliers .....................................................................................
26 










