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- 19 - Hardware Installation Process
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20
C) ATX_POWER (ATX Power)
ØAC power cord should only be connected to
your power supply unit after ATX power cable
and other related devices are firmly
connected to the mainboard.
PS-ON(Soft On/Off)
3.3V
3.3V
GND
GND
GND
VCC
VCC
+12V
5V SB (Stand by +5V)
Power Good
3.3V
GND
GND
GND
GND
VCC
VCC
1
-5V
-12V
J) BIOS_WP (BIOS Write Protection)
1-2 close: Write Protection
2-3 close: Normal
ØPlease note, To flash/upgrade BIOS on this MB
BIOS_WP must be set to 2-3 close. We
recommend BIOS_WP to be set to "1-2 close",
whenever user does not need to flash/upgrade
the BIOS.
1
1
O) S_IRQ (For special design, for example: PCMCIA add on card)
1
Signal
GND