Atx Power Connectors (24-Pin Eatxpwr, 8-Pin Eatx12V) - Asus Z97-K/USB3.1 Manual

7. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to fit these connectors in only one orientation. Find the proper orientation and
push down firmly until the connectors completely fit.
Z97-K/USB 3.1 Z97-K/USB 3.1
Z97-K/USB 3.1 ATX power connectors
• 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 350 W.
• DO NOT forget to connect the 4-pin/8-pin EATX12 V power plug. Otherwise, the
system will not boot.
• We recommend that you use a PSU with a 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 want to use two or more high-end PCI Express x16 cards, use a PSU with
1000W power or above to ensure the system stability.
• 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.
8. Speaker connector (4-pin SPEAKER)
The 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you hear system beeps and warnings.
Z97-K/USB 3.1
Z97-K/USB 3.1 Speaker Out connector
ASUS Z97-K/USB 3.1
EATX12V
EATXPWR
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
PIN 1
GND
+5 Volts
GND
+3 Volts
+3 Volts
PIN 1
SPEAKER
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
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