Asus M4N78 PRO - Motherboard - ATX User Manual page 30

4. 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
• If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
• Do not forget to connect the 4-pin ATX +12 V power plug. Otherwise, the system will not
• We recommend that you use a PSU with higher power output when configuring a
• If you are uncertain about the minimum power supply requirement for your system,
5. Serial port connector (10-1 pin COM1)
The connector is for a serial (COM) port. Connect the serial port module cable to the
connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
1-20
unit (PSU) with a minimum of 300 W power rating. This PSU type has 24-pin and 4-pin
power plugs.
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.
boot up.
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
ASUS M4N78 PRO