Preliminary Information
26633 Rev.
3.03 September
2003
AMD Athlon™ 64 and AMD Opteron™ Processors
Thermal Design Guide
A.2
Procedure for Clip Load Testing
This section provides the necessary information to measure the force applied by a heatsink clip to
the AMD Athlon™ 64 processor. This force is known as the clip load.
A.2.1 Equipment
The following sections detail the equipment needed to measure the clip load.
A.2.1.1 Load
Cell
The load cell made by Entran, part number ELW-D1 is designed to work with the load cell fixture.
See Figure 21 for an example of this load cell. For more information about the load cell, see
http://www.entran.com/elw.htm
.
Figure 21. An Entran ELW-D1 Load Cell
A.2.1.2 Load Cell Fixture
The load cell fixture is designed to be used on any motherboard with a Socket 754 installed. The
fixture with the load cell installed should be the same thickness as the nominal package height of
4.37mm. Figure 22 on page 42 shows the nominal height of the load cell and the fixture. The
square boss on the bottom of the fixture fits in the socket window on Socket 754. Be sure there are
no components in the board used for load testing that would interfere with this feature.
Appendix A
Appendix
41