Asus P2B-D2 User Manual download pdf (Page 32)

32 ASUS P2B-D2 User’s Manual

Connectors

III. INSTALLATION

15. LED Lead (MSG.LED)

This indicates whether a message has been received from a fax/modem. The

LED will remain lit when there is no signal and blink when there is data transfer

or waiting in the inbox. This function requires ACPI OS and driver support.

16. System Management Interrupt Lead (SMI)

This allows the user to manually place the system into a suspend mode or “Green”

mode where system activity is decreased to save electricity and expand the life

of certain components when the system is not in use. This 2-pin connector con-

nects to the case-mounted suspend switch. If you do not have a switch for the

connector, you may use the “Turbo Switch”. SMI is activated when it detects a

short to open moment and therefore leaving it shorted will not cause any prob-

lems. This may require one or two presses depending on the position of the

switch. Wake-up can be controlled by settings in the BIOS but the keyboard will

always allow wake-up (the SMI lead cannot wake up the system). If you want to

use this connector, set “Suspend Mode” under the Power Management Setup

of the BIOS SOFTWARE section to the preferred time after which the system

must go into suspend mode when you press the switch.

17. ATX Power Switch / Soft Power Switch (PWR.SW)

The system power is controlled by a momentary switch connected to this lead.

Pressing the button once will switch the system between ON and SLEEP or ON

and SOFT OFF depending on the “PWR Button” setting under the Power Man-

agement Setup of the BIOS SOFTWARE section. Pressing the switch while in

the ON mode for more than 4 seconds will turn the system off. The system

power LED shows the status of the system’s power.

18. Reset Switch Lead (RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting

your computer without having to turn off your power switch. This is a preferred

method of rebooting to prolong the life of the system’s power supply.

19. System Power LED (PWR.LED)

This 3-pin connector connects the system power LED, which lights when the

system is powered on and blinks when it is in sleep mode.

20. Keyboard Lock Switch Lead (KEY LOCK)

This 2-pin connector connects to the case-mounted key switch to allow key-

board locking.

21. Speaker Connector (SPEAKER)

This 4-pin connector connects to the case-mounted speaker.

P2B-D2 System Panel Connections

PLED

Ground

MSG.LED

PWR_SW

* Requires an ATX power supply.

+5 V

KEYLOCK

+5V

SPKR

Keyboard Lock

Speaker

Connector

Power LED

Ground

+5 V

Reset SW

SMI Lead

MSG LED

ATX Power Switch*

ExtSMI#

+3VSB

ResetCon

Ground

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Asus P2B-D2 User Manual Page 32

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