18 chapter 1: product introduction – Asus Motherboard P4GE-VM User Manual

Page 28

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Chapter 1: Product introduction

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P4GE-VM

P4GE-VM Serial COM2 Bracket

PIN 1

COM2

4. Serial port 2 connector (10-1 pin COM2)

This connector accommodates a second serial port using an optional serial
port bracket. Connect the bracket cable to this connector then install the
bracket into a slot opening at the back of the system chassis.

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P4GE-VM

P4GE-VM ATX Power Connectors

ATX_POWER1

Pin 1

+3.3VDC

-12.0VDC

GND

PS_ON#

GND
GND

GND

-5.0VDC

+5.0VDC

+5.0VDC

PWR_OK

+12.0VDC

+3.3VDC

+3.3VDC

GND

+5.0VDC

GND

+5.0VDC

GND

+5VSB

ATX12V

+12V DC

GND

+12V DC

GND

5. ATX power connectors (20-pin ATX_POWER1, 4-pin ATX12V)

These connectors connect to an ATX 12V 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.

In addition to the 20-pin ATXPWR connector, this motherboard requires that
you connect the 4-pin ATX +12V power plug to provide sufficient power to the
CPU.

Make sure that your ATX 12V power supply can provide 8A on the +12V lead
and at least 1A on the +5-volt standby lead (+5VSB). The minimum
recommended wattage is 230W, or 300W for a fully configured system. The
system may become unstable and may experience difficulty powering up if the
power supply is inadequate.

The COM2 bracket is purchased separately.

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