Asus M3N78 SE - Manual (Page 35)

ASUS M3N78 SE 1-25
9. 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.
M3N78 SE
M3N78 SE ATX power connectors
EATXPWR
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
ATX12V
PIN 1
+12V DC +12V DC
GND GND
• 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.
• If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
• You must install a PSU with a higher power rating if you intend to install additional
devices.