Control; Example Thermal Profile - Intel Celeron D Thermal Design Manual

To determine compliance to the thermal profile, a measurement of the actual processor power
dissipated is required. The measured power is plotted on the Thermal Profile to determine the
maximum case temperature. Using the example in
temperature of 61 °C. Contact your Intel sales representative for assistance in processor power
measurement.
For the Intel Celeron D Processor in the 775-Land LGA Package, there are two thermal profiles to
consider. The Platform Requirement Bit (PRB) indicates which thermal profile is appropriate for a
specific processor. This document will focus on the development of thermal solutions to meet the
thermal profile for PRB=1. See the processor datasheet for the thermal profile and additional
discussion on the PRB.
Figure 3. Example Thermal Profile
75
70
65
60
55
50
45
40
35
30
2.2.3 T

CONTROL

T
CONTROL
thermal solution fan speed is being controlled by the on-die thermal diode. The T
defines a very specific processor operating region where the T
allows the system integrator a method to reduce the acoustic noise of the processor cooling
solution, while maintaining compliance to the processor thermal specification.
The value of T
processor idle power. As a result a processor with a high T
part with lower value of T
The value of T
value the thermal solution should perform similarly. The higher leakage of some parts is offset by a
higher value of T
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Intel Celeron D Processor in the 775-Land LGA Package Thermal Design Guide13
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Order #
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.
defines the maximum operating temperature for the on-die thermal diode when the
is driven by a number of factors. One of the most significant of these is the
CONTROL
when running the same application.
CONTROL
is calculated such that regardless of the individual processor's T
CONTROL
in such a way that they will behave virtually the same acoustically
CONTROL
Processor Thermal/Mechanical Information
Figure 3, a power dissipation of 70 W has a case
60 70 80 90 100
Watts
CONTROL
Heatsink
Design Point
Thermal Profile
FMB2
110
CONTROL
is not specified. This parameter
C
will dissipate more power than a
CONTROL
parameter