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Hardware setup, Asus k7v user’s manual 43, K7v chassis open alarm lead chassis – Asus K7V User Manual

Page 43: K7v atx power connector atx

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ASUS K7V User’s Manual

43

3. HARDWARE SETUP

Connectors

3. H/W SETUP

18) Chassis Intrusion Lead (2-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.

IMPORTANT:

If the chassis intrusion lead is not used, a jumper cap must be

placed over the pins to prevent unnecessary power loss.

0

1

0

1

0

1

K7V

®

K7V Chassis Open Alarm Lead

CHASSIS

Ground

Chassis Signal

1

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: 200 watts; 235W for a fully-configured system) can supply at least 20
amperes on the +5-volt lead and at least 10mA (750mA recommended) on the +5-
volt standby lead (+5VSB). Your system may become unstable/unreliable and may
experience difficulty in powering up if your power supply is inadequate. For Wake-
On-LAN support, your ATX power supply must supply at least 750mA +5VSB.

0

1

0

1

0

1

K7V

®

K7V ATX Power Connector

ATX

+3.3Volts

-12.0Volts

Ground

Power Supply On

Ground

Ground

Ground

-5.0 Volts

+5.0 Volts

+5.0 Volts

Power Good

+12.0Volts

+3.3 Volts

+3.3 Volts

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground

+5V Standby