Guidelines

Dual-Core Intel
®
Xeon
®
Processor 7000 Sequence Thermal /Mechanical Guidelines 21
Thermal Mechanical Design
minimum for the given processor family). Any Offset value greater than 0 moves the point where
the Thermal Profile must be met upwards, as shown by location 2 on the graph. If the diode
temperature is less than T
CONTROL
, then the case temperature is permitted to exceed the Thermal
Profile, but the diode temperature must remain at or below T
CONTROL
. In other words, there is no
T
CASE
specification for the processor at power levels less than P
CONTROL
. The thermal solution for
the processor must be able to keep the processor’s T
CASE
at or below the T
CASE
values defined by
the Thermal Profile between the T
CASE
MAX@T
CONTROL
and T
CASE
MAX points at the
corresponding power levels.
Refer to Section 2.3.1 for the implementation of the T
CONTROL
value in support of fan speed
control (FSC) design to achieve better acoustic performance.
2.2.5 Performance Targets
The Thermal Profile specification for this processor is published in the Dual-Core Intel® Xeon®
Processor 7000 Sequence Datasheet. The Thermal Profile specification is shown as a reference in
the subsequent discussions.
NOTE: The thermal specification shown in this graph is for reference only. Refer to the Dual-Core Intel® Xeon®
Processor 7000 Sequence Datasheet for the Thermal Profile specification. In case of conflict, the data
information in the Datasheet supersedes any data in this figure.
Table 2-3 describes thermal performance targets for the processor cooling solution enabled by
Intel.
Figure 2-7. Thermal Profile for the Dual-Core Intel® Xeon® Processor 7000 Sequence
45
50
55
60
65
70
75
80
0 20 40 60 80 100 120 140 160 180
Power (W)
Thermal Profile
T
casemax
= 0.185 x Power + 45
T
casemax@TDP
TDP
T
casemax@Pcontrol base
P
control base
Table 2-3. Intel Reference Heatsink Performance Targets for the
Dual-Core Intel® Xeon® Processor 7000 Sequence (Sheet 1 of 2)
Parameter
Maximum Unit Notes
CA
0.215 °C/W Mean + 3 sigma
TDP 165 W In case of conflict, Datasheet supersedes
TMDG.