Reference Thermal Solution

Figure 6-6. Tall Torsional Clip Heatsink Extrusion Profile

6.5.6Clip Retention Anchors

For Intel 5000 Series chipset-based platforms that have very limited board space, a clip retention anchor has been developed to minimize the impact of clip retention on the board. It is based on a standard three-pin jumper and is soldered to the board like any common through-hole header. A new anchor design is available with 45° bent leads to increase the anchor attach reliability over time. See Appendix Thermal Solution Component Suppliers for the part number and supplier information.

6.6Reliability Guidelines

Each motherboard, heatsink and attach combination may vary the mechanical loading of the component. Based on the end user environment, the user should define the appropriate reliability test criteria and carefully evaluate the completed assembly prior to use in high volume. Some general recommendations are shown in Table 6-2.

Table 6-2. Reliability Guidelines (Sheet 1 of 2)

Test (1)

Requirement

Pass/Fail Criteria (2)

Mechanical Shock

50 g, board level, 11 msec, 3 shocks/axis

Visual Check and Electrical

 

 

Functional Test

 

 

 

Random Vibration

7.3 g, board level, 45 min/axis, 50 Hz to 2000 Hz

Visual Check and Electrical

 

 

Functional Test

 

 

 

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Intel® 631xESB/632xESB I/O Controller Hub Thermal Mechanical Design Guide

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Intel 5000 manual Clip Retention Anchors, Reliability Guidelines Sheet 1, Test Requirement Pass/Fail Criteria