Intel Itanium 9340 LW80603003240AA User Manual
Product codes
LW80603003240AA
Intel
®
Itanium
®
Processor 9300 Series Datasheet
91
Thermal Specifications
5
Thermal Specifications
This chapter provides the thermal specifications of the Intel Itanium processor 9300
series.
series.
The Intel Itanium processor 9300 series implements power and thermal management.
The Intel Itanium processor 9300 series power management system is built from four
subsystems or components. These are power measurement components, the
temperature measurement components, the frequency control components and the
voltage control components that work in concert to maximize performance within a
given power and thermal envelope.
The Intel Itanium processor 9300 series power management system is built from four
subsystems or components. These are power measurement components, the
temperature measurement components, the frequency control components and the
voltage control components that work in concert to maximize performance within a
given power and thermal envelope.
5.1
Intel Itanium Processor 9300 Series
Thermal Features
The Intel Itanium processor 9300 series have internal thermal sensors which sense
when a certain temperature is reached on the processor core. These sensors are used
to control various thermal states.
when a certain temperature is reached on the processor core. These sensors are used
to control various thermal states.
shows an approximate relationship
between temperature, time, and the THERMALERT, TCONTROL, PROCHOT,
THERMWARN, and THERMTRIP points.
THERMWARN, and THERMTRIP points.
Note:
is not intended to show an exact relationship in time or temperature as a
processor's thermal state advances from one state to the next state. Cooling solution
performance degradation and processor workload variations will affect the processor
thermal state.
5.1.1
Digital Thermometer
The Intel Itanium processor 9300 series uses a thermal sensing device called Digital
Thermometer (DT) to read the values from the thermal sensors available on the
processor die. The DT also compares these values to a thermal trip point that is hard-
wired. Calibration information is used to translate the DT output to processor
temperature in degrees Celsius relative to the PROCHOT setpoint. DT readout is
Thermometer (DT) to read the values from the thermal sensors available on the
processor die. The DT also compares these values to a thermal trip point that is hard-
wired. Calibration information is used to translate the DT output to processor
temperature in degrees Celsius relative to the PROCHOT setpoint. DT readout is
Figure 5-1. Intel Itanium Processor 9300 Series Thermal States
Tim e
P R O C H O T
T H E R M W A R N
T H E R M T R IP
T H E R M A LE R T
D iag ram no t to scale
T
C O N T R O L
RE
LAT
IVE
_
T
E
M
P
M a x O p e ratin g T e m p e ra tu re