Balanced Technology Extended (BTX) Thermal/Mechanical Design Information
50 Thermal and Mechanical Design Guidelines
mounting hole position for TMA attach, the required preload is approximately 10–15N
greater than the values stipulated in Figure 5-6; however, Intel has not conducted any
validation testing with this TMA mounting scheme.
Figure 5-7. Thermal Module Attach Pointes and Duct-to-SRM Interface Features
NOTES:
1. For clarity the motherboard is not shown in this figure. In an actual assembly, the
captive 6x32 screws in the thermal module pass through the rear holes in the
motherboard designated in the socket keep-in Figure 7-43 through Figure 7-47 in
Appendix G and screw into the SRM and chassis PEM features.
2. This front duct ramp feature has both outer and inner lead-in that allows the feature to
slide easily into the SRM slot and around the chassis PEM nut. Note that the front PEM
nut is part of the chassis not the SRM.
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