FW82801DBM S L6DN Intel, FW82801DBM S L6DN Datasheet - Page 155

• Manufacturer Part Number: FW82801DBM S L6DN
• Manufacturer: Intel

Specifications of FW82801DBM S L6DN

• Lead Free Status / RoHS Status: Not Compliant

5.12.8.4
5.12.8.5
5.12.9
Intel
®
Figure 5-14. Intel
82801DBM ICH4-M Datasheet
Processor-Initiated Passive Cooling (Via Programmed Duty Cycle on
STPCLK#)
Using the THTL_EN and THTL_DTY bits, the ICH4 can force a programmed duty cycle on the
STPCLK# signal. This reduces the effective instruction rate of the processor and cut its power
consumption and heat generation.
Active Cooling
Active cooling involves fans. The GPIO signals from the ICH4 can be used to turn on/off a fan.
Intel
The Intel
performance/thermal states and to transition smoothly between them. The internal processor clock
setting and processor supply voltage setting determine these states. The ICH4 supports a low-
power mode and a high-performance mode.
®
®
®
SpeedStep
SpeedStep
SpeedStep
Enabled Mobile
Module (VRM)
SpeedStep
Technology
®
Processor
Processor
Regulator
®
Voltage
technology feature enables a mobile system to operate in multiple processor
Intel
Technology Block Diagram
VddCore
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®
VRCODE[4:0]
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Power Supply
From Main
Technology Protocol
CPUPWRGD
CPUPERF#
STPCLK #
VGATE
PWROK
5
SSMUXSEL
Mux
5
5
High Voltage
Low Voltage
ICH4
Functional Description
155