ASUS CUW-B User’s Manual
41
3. HARDWARE SETUP
Connectors
3. H/W SETUP
25) ATX Power Switch Lead (2-pin 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 SOFT OFF.
Pushing 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.
26) System Management Interrupt Lead (2-pin 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. Wake-up can be controlled by set-
tings in the BIOS but the keyboard will always allow wake-up (the SMI lead
cannot wake up the system).
27) Message LED Lead (2-pin TB 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 trans-
fer or waiting in the inbox. This function requires ACPI OS and driver support.
28) ATX Power Supply Connector (20-pin block ATXPWR)
This connector connects to an ATX power supply. The plug from the power
supply will only insert in one orientation because of the different hole sizes.
Find the proper orientation and push down firmly making sure that the pins are
aligned.
IMPORTANT:
Make sure that your ATX power supply can supply at least 10mA
on the +5-volt standby lead (+5VSB). You may experience difficulty in power-
ing ON your system if your power supply cannot support the load. For Wake-
On-LAN support, your ATX power supply must supply at least 720mA +5VSB.
0
1
®
CUW-B
CUW-B ATX Power Connector
ATXPWR
+3.3 V
olts
-12.0 V
olts
Ground
Power Supply On
Ground
Ground
Ground
-5.0 V
olts
+5.0 V
olts
+5.0 V
olts
Power Good
+12.0 V
olts
+3.3 V
olts
+3.3 V
olts
Ground
+5.0 V
olts
Ground
+5.0 V
olts
Ground
+5V Standby
