82583V Datasheet, PDF (359/374 Pages) Intel Corporation – Intel® 82583V GbE Controller

Thermal Design Considerations—82583V GbE Controller
Table 62. Reliability Validation
12.11
12.12
Test¹
Requirement
Pass/Fail Criteria²
Mechanical shock
Random Vibration
High-temperature
life
Thermal cycling
Humidity
50 G, board level 11 ms, 2 shocks/axis Visual and electrical check
7.3 G, board level 45 minutes/axis, 50
to 2000 Hz
Visual and electrical check
+85 °C 2000 hours total
Checkpoints occur at 168, 500, 1000,
and 2000 hours
Visual and mechanical check
Per-target environment (for example,
0 °C to +85 °C) 500 cycles
Visual and mechanical check
85% relative humidity 85 °C, 1000
hours
Visual and mechanical check
1. Performed the above tests on a sample size of at least 12 assemblies from three lots of
material (total = 36 assemblies).
2. Additional pass/fail criteria can be added as necessary.
Measurements for Thermal Specifications
Determining the thermal properties of the system requires careful case temperature
measurements. Guidelines for measuring 82583V case temperature are provided in
Section 12.12.
Case Temperature Measurements
Maintain 82583V Tcase at or below the maximum case temperatures listed in Table 60
to ensure functionality and reliability. Special care is required when measuring the case
temperature to ensure an accurate temperature measurement. Use the following
guidelines when making case measurements:
• Measure the surface temperature of the case in the geometric center of the case
top.
• Calibrate the thermocouples used to measure Tcase before making temperature
measurements.
• Use 36-gauge (maximum) K-type thermocouples.
Care must be taken to avoid introducing errors into the measurements when
measuring a surface temperature that is a different temperature from the surrounding
local ambient air. Measurement errors might be due to a poor thermal contact between
the thermocouple junction and the surface of the package, heat loss by radiation,
convection, conduction through thermocouple leads, and/or contact between the
thermocouple cement and the heat-sink base (if used).
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