Intel 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - THERMAL MECHANICAL S AND DESIGN GUIDELINES 01-2011, Specifications

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Sensor Based Thermal Specification Design Guidance
78 Thermal/Mechanical Specifications and Design Guidelines
Notes:
1. The ambient temperature is measured at the inlet to the processor thermal solution
2. This column can be expressed as a function of T
AMBIENT
by the following equation:

CA
= 0.29 + (45.1 - T
AMBIENT
) x 0.0181
3. This column can be expressed as a function of T
AMBIENT
by the following equation:

CA
= 0.29 + (45.1 - T
AMBIENT
) x 0.0105
4. This table is provided as a reference please consult the product specification for current values.
5. Based on the testing performed a curve was fit to the data in the form
Psi_ca = a x RPM
3
+b x RPM
2
+c x RPM + d, where:
a = -1.53 E-11, b = 1.41 E-07, c = -0.00048, d = 0.925782
6. Full Speed of 3150 RPM the DHA-A thermal solution delivers a 
CA
= 0.335 °C /W based on preliminary
testing.
7. Minimum speed is limited to 1000 RPM to ensure cooling of other system components
§
28.0 0.600 1000 0.469 1550
27.0 0.618 1000 0.480 1450
26.0 0.637 1000 0.491 1400
25.0 0.655 1000 0.501 1350
24.0 0.673 1000 0.512 1300
23.0 0.691 1000 0.522 1250
22.0 0.709 1000 0.533 1200
21.0 0.727 1000 0.543 1150
20.0 0.746 1000 0.554 1100
Table 8-3. Thermal Solution Performance above T
CONTROL
(Sheet 2 of 2)
T
AMBIENT
1

CA
at
DTS = T
CONTROL
2
RPM for 
CA
at
DTS = T
CONTROL
5

CA
at
DTS = -1 3
RPM for 
CA
at
DTS = -1 5