Asus V3-M2V890 - Manual (Page 54)

4-8 Chapter 4: Motherboard info
+12V DC
GND +12V DC
GND
ATX12V
EATXPWR
+3 Volts
+3 Volts
Ground
+5 Volts
Ground
+5 Volts
Ground
Power OK
+5V Standby
+12 Volts
+12 Volts
+3 Volts
+3 Volts
-12 Volts
Ground
PSON#
Ground
Ground
Ground
-5 Volts
+5 Volts
+5 Volts
+5 Volts
Ground
ATX power connectors
6. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for an ATX power supply. The plugs from
the power supply are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.
• We recommend that you use an ATX 12 V Specification
2.0-compliant power supply unit (PSU) with a minimum of 300 W
power rating. This PSU type has 24-pin and 4-pin power plugs.
• If you intend to use a PSU with 20-pin and 4-pin power plugs, make
sure that the 20-pin power plug can provide at least 15 A on +12
V and that the PSU has a minimum power rating of 300 W. The
system may become unstable or may not boot up if the power is
inadequate.
• Do not forget to connect the 4-pin ATX +12 V power plug;
otherwise, the system will not boot up.
• We recommend that you use a PSU with higher power output 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.