The
AZZA
U694 MAINBOARD SERIES
Page 19
Hardware Installation
2.6.1 PW: Power On / Off and External Suspend Switch Connector
The Power On/Off connector has two functions. It can be the Power Switch or Suspend
Switch of your PC system. You can either choose “
Delay 4 Sec”
or “
Instant
OFF
” (Please refer to the Award BIOS setup instructions in Chapter 3).
Option 1:
If you choose “
Delay 4 Sec.
” In the BIOS CMOS Setup, the function of “PW”
will be:
A. When the system power is "OFF", press this switch, the system will power on.
B. When system power is "ON”, you can select two different modes: -
Mode 1:
Press and hold the Power ON button for less than 4 seconds and then release it.
The system will be turned into Suspend mode (turned into the GREEN mode) When the
system is in the Suspend mode:-
!"
"
Press the Power on button (less than 4 seconds), the system will return to Full-ON
mode.
!"
"
Press and hold the Power On Button for more than 4 seconds, the system will be
powered off.
Mode 2:
Press and hold the Power ON button for more than 4 seconds, the system will
be completely powered off.
Option 2: If
you choose “
Instant OFF
.” In the BIOS CMOS Setup, the power switch will
operate like a normal ON / OFF Power button.
2.6.2. SL LED Connector
When the AC power is “ON” the mainboard will always have a standby voltage of +5V and
the SL LED will be on. If this LED is off it means that the AC power is “OFF” or has been
disconnected or Full on.
2.6.3. IDE HDD LED Connector
Any read and write activity by the HDD will turn this LED on.
Ground
The following System Panel Buttons and LED
Connectors can be found at the front of the
mainboard on the left hand side.
PW
= Power On/Off and
Suspend Switch Connector
SL
= Standby LED Connector
HL
= HDD LED Connector
RS
= Reset Button Connector
2.6. System Panel Buttons and LED Connectors
PIN 1
SL:
Standby DC pull up
HL:
+5V DC Pull Up
Ground
RS:
Reset Control
PW:
+5V DC Pull Up
Ground
Ground
Top View of the System Panel
and LED Connectors
