Intel Core 2 Duo E7300 BX80570E7300 User Manual

Thermal and Mechanical Design Guidelines   

 45 

The reference TMA will be evaluated at sea level. However, many companies design 

products that must function reliably at high altitude, typically 1,500 m [5,000 ft] or 

more. Air-cooled temperature calculations and measurements at sea level must be 

adjusted to take into account altitude effects like variation in air density and overall 

heat capacity. This often leads to some degradation in thermal solution performance 

compared to what is obtained at sea level, with lower fan performance and higher 

surface temperatures. The system designer needs to account for altitude effects in the 

overall system thermal design to make sure that the T

C

 requirement for the processor 

is met at the targeted altitude. 

The Intel reference heatsink will be validated within the specific boundary conditions 
based on the methodology described Section 

5.2 , and using a thermal test vehicle.  

Testing is done in a BTX chassis at ambient lab temperature. The test results, for a 

number of samples, will be reported in terms of a worst-case mean + 3 value for 

thermal characterization parameter using real processors (based on the thermal test 

vehicle correction factors).  

Structural reliability tests consist of unpackaged, system -level vibration and shock 

tests of a given thermal solution in the assembled state. The thermal solution should 

meet the specified thermal performance targets after these tests are conducted; 

however, the test conditions outlined here may differ from your own system 

requirements. 

Recommended performance requirement for a system: 

 

Duration: 10 min/axis, 3 axes 

 

Frequency Range: 5 Hz to 500 Hz  

5 Hz @ .001 g2/Hz to 20 Hz @ 0.01 g2/Hz (slope up) 

20 Hz to 500 Hz @ 0.01 g2/Hz (flat)  

 

Power Spectral Density (PSD) Profile: 2.2 G RMS