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36 ASUS ME-99B User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
The following PANEL illustration is used for items 18-24
ME-99B System Panel Connections
*
Requires an ATX power supply.
PLED
Ground
TB_LED
PWR
+5 V
Keylock
+5V
Speaker
Speaker
Connector
Power LED
Ground
+5 V
Reset SW
SMI Lead
Message LED
ExtSMI#
+3VSB
Reset
Ground
Ground
Ground
Keyboard Lock
ATX Power
Switch*
01
®
ME-99B
18) System Power LED (3-1 pin PWRLED)
This 3-1 pin connector connects the system power LED, which lights when the
system is powered on and blinks when it is in sleep mode.
19) Keyboard Lock Switch Lead (2-pin KEYLOCK)
This 2-pin connector connects to the case-mounted key switch to allow key-
board locking.
20) System Warning Speaker Connector (4-pin SPEAKER)
This 4-pin connector connects to the case-mounted speaker. You may leave this
disconnected if your motherboard has an onboard buzzer which can replace the
chassis speaker. When connected, you will hear system warnings through both
sources. NOTE: Some sound cards allow you to connect to the system speaker
signal so that the warnings can be heard and adjusted through your multimedia
system.
21) System Message LED Lead (2-pin 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.
22) System Management Interrupt Switch Lead (2-pin SMISW)
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).