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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 t these connectors in only one
orientation. Find the proper orientation and push down rmly until the
connectors completely t.
•
We recommend that you use an ATX 12 V Specication
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
conguring 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.