64-bit Intel Xeon Processor with 2MB L2 Cache Thermal/Mechanical Design Guidelines

64-bit Intel® Xeon™ Processor with 2MB L2 Cache Thermal/Mechanical Design Guidelines 11
2 Thermal/Mechanical Reference
Design
2.1 Mechanical Requirements
The mechanical performance of the processor cooling solution must satisfy the requirements
described in this section.
2.1.1 Processor Mechanical Parameters
NOTE: In the case of a discrepancy, the most recent processor datasheet supersedes targets listed in the
above table.
1. These specifications apply to uniform compressive loading in a direction perpendicular to the IHS top
surface.
2. This is the minimum and maximum static force that can be applied by the heatsink and retention solution to
maintain the heatsink and processor interface.
3. These parameters are based on limited testing for design characterization. Loading limits are for the package
only and do not include the limits of the processor socket.
4. This specification applies for thermal retention solutions that allow baseboard deflection.
5. This specification applies for thermal retention solutions that prevent baseboard deflection.
6. Dynamic loading is defined as an 11 ms duration average load superimposed on the static load requirement.
7. Experimentally validated test condition used a heatsink mass of 1 lbm (~0.45 kg) with 100 G acceleration
measured at heatsink mass. The dynamic portion of this specification in the product application can have
flexibility in specific values, but the ultimate product of mass times acceleration should not exceed this
validated dynamic load (1 lbm x 100 G = 100 lb).
8. Transient loading is defined as a 2 second duration peak load superimposed on the static load requirement,
representative of loads experienced by the package during heatsink installation.
Table 2-1. Processor Mechanical Parameters
Parameter Minimum Maximum Unit Notes
Volumetric Requirements
and Keepouts
Refer to drawings in
Appendix A
Heatsink Mass 1000
2.2
g
lbs
Static Compressive Load 44
10
222
50
N
lbf
1,2,3,4
44
10
288
65
N
lbf
1,2,3,5
Dynamic Compressive
Load
N/A
NA
222 N + 0.45 kg * 100 G
50 lbf (static) + 1 lbm * 100 G
N
lbf
1,3,4,6,7
N/A
NA
288 N + 0.45 kg * 100 G
65 lbf (static) + 1 lbm * 100 G
N
lbf
1,3,5,6,7
Transient N/A 445
100
N
lbf
1,3,8