2.ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

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.

ATX12V EATXPWR

+12V DC +12V DC

PIN 1

GND

GND

C8HM70-I/HDMI

+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

 

 

 

 

 

 

C8HM70-I/HDMI 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 ATX +12V 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.

3.Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.

By default, the pin labeled “Chassis Signal” and “Ground” are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.

CHASSIS

+5VSB MB

Chassis Signal GND

C8HM70-I/HDMI

C8HM70-I/HDMI Chassis intrusion connector

ASUS C8HM70-I Series

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