Asus M5A97 LE R2.0 User Manual page 36

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.
M5A97 LE R2.0
M5A97 LE R2.0 ATX power connectors
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1-22
ATX12V
PIN 1
For a fully configured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a
minimum power of 300 W.
DO NOT forget to connect the 4-pin ATX12 V power plug; otherwise, the system will
not boot.
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.
If you want to use two high-end PCI Express x16 cards, use a PSU with 1000W power
or above to ensure the system stability.
EATXPWR
+3 Volts GND
+12 Volts +5 Volts
+12 Volts +5 Volts
+5V Standby +5 Volts
Power OK -5 Volts
GND GND
+5 Volts GND
GND GND
+5 Volts PSON#
GND GND
+3 Volts -12 Volts
+3 Volts +3 Volts
PIN 1
Chapter 1: Product introduction