參數(shù)資料
型號(hào)： BX805499040
廠商： INTEL CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 64-BIT, 1600 MHz, MICROPROCESSOR, CPGA611
封裝： PGA-611
文件頁(yè)數(shù)： 83/108頁(yè)
文件大小： 2315K
代理商： BX805499040
76
Dual-Core Intel Itanium Processor 9000 Series Datasheet
Thermal Specifications
5.1.2
Enhanced Thermal Management
ETM is a power and thermal protection feature. On the Dual-Core Intel Itanium 2
processor 9000 Series, ETM uses power and thermal sensing devices on the die to
monitor entry points, indicating dangerous operation exceeding the thermal or power
specification. Once the sensing devices observe the temperature rising above the
power or thermal entry point, the processor will enter a low power mode of execution
and notify the system by sending a Correctable Machine Check Interrupt (CMCI). The
processor will remain in this low power mode until the power and temperature decrease
below the entry points and remain there for approximately one second, at which point
it will send another CMCI and resume normal operation. If the power and temperature
cannot be reduced and continue to rise to critical levels, the processor will assert Power
Trip or Thermal Trip. The ETM feature may be disabled through the PAL.
5.1.3
Power Trip
The Dual-Core Intel Itanium 2 processor 9000 series protects itself and the MVR from
catastrophic over power by use of an internal power sensor. The sensor trip point is set
above the normal operating power to ensure that there are no false trips. The
processor will signal a continuable MCA when the power draw exceeds a safe operating
level.
Warning:
Data will be lost if the MVR overheats and shuts down as a result of an extended over
power condition.
Once power trip is activated, the processor can continue operation, but may continue to
signal continuable MCAs as long as the over power condition exists.
5.1.4
Thermal Trip
The Dual-Core Intel Itanium 2 processor 9000 series protects itself from catastrophic
overheating by use of an internal thermal sensor. The sensor trip point is set well above
the normal operating temperature to ensure that there are no false trips. The processor
will stop all execution when the junction temperature exceeds a safe operating level.
Warning:
Data will be lost if the processor goes into thermal trip (signaled to the system by the
THRMTRIP# pin).
Once thermal trip is activated, the processor remains stopped until RESET# is asserted.
The processor case temperature must drop below the specified maximum before
issuing a reset to the processor. Please see Section 5.2 for details on case temperature.
5.2
Case Temperature
See Table 5-1 for the case temperature specifications for the Dual-Core Intel Itanium 2
processor 9000 series. The case temperature is defined as the temperature measured
at the center of the top surface of the IHS.
Warning:
Data may be lost if the case temperature exceeds the specified maximum.
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