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 9
Introduction
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Thermal Profile Line that defines case temperature specification of a processor at a given power level.
TIM Thermal Interface Material: The thermally conductive compound between the heatsink 
and the processor case. This material fills the air gaps and voids, and enhances the 
transfer of the heat from the processor case to the heatsink.
T
LA
The measured ambient temperature locally surrounding the processor. The ambient 
temperature should be measured just upstream of a passive heatsink or at the fan inlet for 
an active heatsink. 
T
SA
The system ambient air temperature external to a system chassis. This temperature is 
usually measured at the chassis air inlets.
U A unit of measure used to define server rack spacing height. 1U is equal to 1.75 in, 2U 
equals 3.50 in, etc.
Table 1-2. Terms and Descriptions (Sheet 2 of 2)










