Справочник Пользователя для Intel 915GME

Mobile Intel

®

 915GME Express Chipset 

Development Kit User’s Manual

April 2007

30

Order Number: 317230-001US

For AC power loss, the system operation is defined by register settings in the Intel 

ICH6-M. Upon the return of power, a BIOS option, set prior to the power loss, allows 

the system to either go immediately to the S5 state, or reboot to the Full-On state, no 

matter what the state was before the power loss. External logic for this functionality is 

not necessary. If the BIOS remains in the S5 state after AC power loss, only the power 

button or the RTC alarm can bring the system out of the S5 state. The status of enabled 

wake events will be lost.

Power measurement resistors are provided on the platform to measure the power of 

most subsystems. All power measurement resistors have a tolerance of 1%. The value 

of these power measurement resistors are 2 mΩ by default. Power on a particular 

subsystem is calculated using the following formula:

R is the value of the sense resistor (typically 0.002 Ω)

V is the voltage measured across the sense resistor.

It is recommended that the user use a high precision digital multi-meter tool such as 

the Agilent* 34401A digital multi-meter. Such a meter has 6½ digits of accuracy and 

can provide a much greater accuracy in power measurement that a common 3½ digit 

multimeter.

 summarizes all the power measurement sense resistors located on the Mobile 

Intel

®

 915GME Express Chipset  platform. All sense resistors are 0.002 Ω unless 

otherwise noted.

2

=

1.0

+V1

U8A2.6

NC1-6_R

R8A3.2

1.5

+V1.5

Q3J2.1-3

+V1.5_VCCAUX

R7V1.1

1.5 Always

+V1.5A

R3J12.2

+V1.5A_ICH

R7V2.1

1.5 Switched

+V1.5S

Q3Y1.1-3

+V1.5S_DLVDS

R5U15.1

+V1.5S_DDRDLL

C5R3.1

+V1.5S_S_PCIE

C5T7.2

+V1.5S_3GPLL (0.5Ω)

R6R1.1

+V1.5S_MPLL

C4T1.1

+V1.5S_HPLL

C4R7.1

+V1.5S_DPLLA

C5T12.1

+V1.5S_DPLLB

C5T9.1

+V1.5S_HMPLL

R4D1.2