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Thermal Metrology
The maximum Thermal Test Vehicle (TTV) case temperatures (T
CASE-MAX
) can be
derived from the data in the appropriate TTV thermal profile earlier in this chapter.
The TTV T
CASE
is measured at the geometric top center of the TTV integrated heat
spreader (IHS). The following figure illustrates the location where T
CASE
temperature
measurements should be made.
Figure 19. Thermal Test Vehicle (TTV) Case Temperature (T
CASE
) Measurement Location
37.5
37.5
Measure T
CASE
at
the geometric
center of the
package
Note: THERM-X OF CALIFORNIA can machine the groove and attach a thermocouple to the
IHS. The supplier is subject to change without notice. THERM-X OF CALIFORNIA, 1837
Whipple Road, Hayward, Ca 94544. Ernesto B Valencia +1-510-441-7566 Ext. 242
ernestov@therm-x.com. The vendor part number is XTMS1565.
Fan Speed Control Scheme with Digital Thermal Sensor
(DTS) 1.1
To correctly use DTS 1.1, the designer must first select a worst case scenario T
AMBIENT
,
and ensure that the Fan Speed Control (FSC) can provide a Ψ
CA
that is equivalent or
greater than the Ψ
CA
specification.
The DTS 1.1 implementation consists of two points: a Ψ
CA
at T
CONTROL
and a Ψ
CA
at
DTS = -1.
5.2
5.3
Thermal Management—Processor
Desktop 4th Generation Intel
®
Core
™
Processor Family, Desktop Intel
®
Pentium
®
Processor Family, and Desktop Intel
®
Celeron
®
Processor Family
December 2013 Datasheet – Volume 1 of 2
Order No.: 328897-004 71