Asus A8V-X - Manual (Page 40)

1-28 Chapter 1: Product introduction
9. ATX power connectors (20-pin ATXPWR, 4-pin ATX12V)
These connectors are for an ATX power supply plugs. The power
supply plugs are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.
• Use of an ATX 12 V Specification 2.0-compliant power supply unit
(PSU) that provides a minimum power of 350 W is recommended
for a fully-configured system.
• Do not forget to connect the 4-pin ATX +12 V power plug;
otherwise, the system will not boot up.
• Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The
system may become unstable or may not boot up if the power is
inadequate.
• You must install a PSU with a higher power rating if you intend to
install additional devices.
A
8
V
-X
®
A8V-X ATX Power Connectors
ATXPWR
ATX12V
+12V DC
GND
+12V DC
GND
+3.3VDC
-12.0VDC
COM
PS_ON#
COM
COM
COM
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
COM
+5.0VDC
COM
+5.0VDC
COM
+5VSB