Intel WiFi Link 5100 - Manual (Page 29)

Intel ® 5100 Memory Controller Hub Chipset for Communications, Embedded, and Storage Applications
July 2008 TDG
Order Number: 318676-003US 29
Intel ® 5100 MCH Chipset
6.2 CompactPCI* Reference Heatsink
Intel has also developed a reference thermal solution compatible with the CompactPCI*
form factor. The reference solution was developed assuming a maximum ambient
temperature of 67 °C with a minimum volumetric airflow rate of 10 CFM through each
slot. Assuming these boundary conditions are met, the reference thermal solution
meets the thermal specifications for Intel ® 5100 Memory Controller Hub Chipset.
6.2.1 Component Overview
The CompactPCI* reference heatsink is an extruded aluminum heatsink and does not
share the same volumetric footprint as the AdvancedTCA* reference heatsink. Full
mechanical drawings of the thermal solution assembly, full mechanical drawings,
volumetric footprint, and the heatsink clip are provided in Appendix A . It uses the same
spring clip retention and Honeywell* PCM45F Thermal Interface Material (TIM) as the
AdvancedTCA* reference solution.
Figure 21 shows the isometric view of the CompactPCI* reference heatsink.
Table 7. Reliability Guidelines
Test 1 Requirement Pass/Fail Criteria 2
Mechanical Shock 50 g, board level, 11 ms, three shocks/axis Visual Check and Electrical Functional Test
Random Vibration 7.3 g, board level, 45 minutes/axis, 50 Hz to 2000 Hz Visual Check and Electrical Functional Test
Temperature Life
85 °C, 2000 hours total, checkpoints at 168, 500, 1000,
and 2000 hours
Visual Check
Thermal Cycling -5 °C to +70 °C, 500 cycles Visual Check
Humidity 85% relative humidity, 55 °C, 1000 hours Visual Check
Notes:
1. It is recommended that the above tests be performed on a sample size of at least 12 assemblies from three lots of
material.
2. Additional pass/fail criteria may be added at the discretion of the user.
Figure 21. Isometric View of the CompactPCI* Reference Heatsink
Note: Refer to Appendix A for more detailed mechanical drawings of the heatsink.