82583V Datasheet, PDF (360/374 Pages) Intel Corporation – Intel® 82583V GbE Controller

82583V GbE Controller—Thermal Design Considerations
12.12.1
Note:
Attaching the Thermocouple
The following approach is recommended to minimize measurement errors for attaching
the thermocouple to the case.
• Use 36 gauge or smaller diameter K type thermocouples.
• Ensure that the thermocouple has been properly calibrated.
• Attach the thermocouple bead or junction to the top surface of the package (case)
in the center of the package using high thermal conductivity cements.
It is critical that the entire thermocouple lead be butted tightly to the top of the
package.
• Attach the thermocouple at a 0° angle if there is no interference with the
thermocouple attach location or leads (Figure 71). This is the preferred method and
is recommended for use with non-enhanced packages.
Figure 71. Technique for Measuring Tcase with a 0° Angle Attachment
12.13
Conclusion
Increasingly complex systems require better power dissipation. Care must be taken to
ensure that the additional power is properly dissipated. Heat can be dissipated using
improved system cooling, selective use of ducting or any combination.
The simplest and most cost effective method is to improve the inherent system cooling
characteristics through careful design and placement of fans, vents, and ducts. When
additional cooling is required, thermal enhancements may be implemented in
conjunction with enhanced system cooling. The size of the fan can be varied to balance
size and space constraints with acoustic noise.
This section has presented the conditions and requirements to properly design a
cooling solution for systems implementing the 82583V. Properly designed solutions
provide adequate cooling to maintain the 82583V case temperature at or below those
listed in Table 60. Ideally, this is accomplished by providing a low local ambient
temperature and creating a minimal thermal resistance to that local ambient
temperature.
By maintaining the 82583V case temperature at or below those recommended in this
section, the 82583V will function properly and reliably.
Use this section to understand the 82583V thermal characteristics and compare them
to your system environment. Measure the 82583V case temperatures to determine the
best thermal solution for your design.
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