Asus MES-N User Manual download pdf (Page 42)

42 K7M User’s Manual

3. HARDWARE SETUP

Connectors

3. H/W SETUP

18) Chassis Intrusion Lead (4-1 pin CHASSIS)

This lead is for a chassis designed for chassis intrusion detection. After-market

toggle switches may also be installed to the chassis panel or on any removable

components. Two wires should be available from the chassis to connect to this

lead. When any chassis component is removed, the contact should open and the

motherboard will record a chassis intrusion event. The event can then be pro-

cessed by software, such as LDCM. If the chassis intrusion lead is not used, a

jumper cap must be placed over the pins to prevent unnecessary power loss.

0 10 10 1

K7M

K7M Chassis Open Alarm Lead

+5Volt

(Power Supply Stand By)

Ground

Chassis Signal

CHASSIS

19) ATX Power Supply Connector (20-pin block ATXPWR)

This connector connects to an ATX power supply. The plug from the power sup-

ply will only insert in one orientation because of the different hole sizes. Find the

proper orientation and push down firmly making sure that the pins are aligned.

IMPORTANT: Make sure that your ATX power supply (minimum recommended

wattage: 250 watts) can supply at least 20 amperes on the +5-volt lead and 10mA

on the +5-volt standby lead (+5VSB). Your system may become unstable/unreli-

able and may experience difficulty in powering up if your power supply is inad-

equate. For Wake-On-LAN support, your ATX power supply must supply at least

720mA +5VSB.

0 10 10 1

K7M

K7M ATX Power Connector

+3.3Volts

-12.0Volts

Ground

Power Supply On

Ground

-5.0 Volts

+5.0 Volts

Power Good

+12.0Volts

+3.3 Volts

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground

+5V Standby

ATXPWR

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Asus MES-N User Manual Page 42

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