Installation Instructions
Manual for P7B series
7
ATX12V Power Supply Connector & Power Switch (POWER SW)
Be sure to connect the power supply plug to this connector in its proper orientation. The
power switch (POWER SW) should be connected to a momentary switch. When powering
up your system, first turn on the mechanical switch of the power supply (if one is provided),
then push once the power switch. When powering off the system, you needn’t turn off the
mechanical switch, just
Push once
*
the power switch.
Hard Disk LED Connector (HD_LED)
The connector connects to the case’s IDE indicator LED indicating the activity status of IDE
hard disk. The connector has an orientation. If one way doesn’t work, try the other way.
Reset Switch (RESET)
The connector connects to the case’s reset switch. Press the switch once, the system
resets.
Note
Note
If you change “Soft-off by POWER BUTTON ” from default
“Instant-off” to “Delay 4 Sec” in the “POWER MANAGEMENT
SETUP” section of the BIOS, the power switch should be
pressed for morethan 4 seconds before the system
powers down.
POWER SW
ATX +12V Power
ATX Power
20
1
5V
5 V
-5V
GND
GND
PS-ON
-12V
3.3V
GND
12V
5VSB
5V
GND
3.3V
GND
5V
GND
PS-OK
3.3V
GND
GND
GND
12V
12V
1
