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Thermal Specifications
Figure 6-5.
Case Temperature (T
19.25 mm [0.76 in]
Note:
Figure is not to scale and is for reference only.
6.2
Processor Thermal Features
6.2.1
Thermal Monitor Features
The Intel
features, Thermal Monitor (TM1) and Enhanced Thermal Monitor (TM2). The TM1 and
TM2 must both be enabled in BIOS for the processor to be operating within
specifications. When both are enabled, TM2 will be activated first and TM1 will be added
if TM2 is not effective.
6.2.2
Thermal Monitor
The Thermal Monitor (TM1) feature helps control the processor temperature by
activating the Thermal Control Circuit (TCC) when the processor silicon reaches its
maximum operating temperature. The TCC reduces processor power consumption as
needed by modulating (starting and stopping) the internal processor core clocks. The
temperature at which Thermal Monitor activates the thermal control circuit is not user
configurable and is not software visible. Bus traffic is snooped in the normal manner,
and interrupt requests are latched (and serviced during the time that the clocks are on)
while the TCC is active.
When the TM1 is enabled, and a high temperature situation exists (that is, TCC is
active), the clocks will be modulated by alternately turning the clocks off and on at a
duty cycle specific to the processor (typically 30 - 50%). Cycle times are processor
Document Number: 318080-002
) Measurement Location
CASE
19.25 mm [0.76 in]
53.34 mm FC-mPGA6 Package
®
®
Xeon
Processor 7200 Series and 7300 Series provide two thermal monitor
Measure T
CASE
(geometric center of IHS)
Thermal grease should cover
entire area of IHS
at this point
103
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