[. . . ] Motherboard
M2A-VM
E2975 First Edition V1 January 2007
Copyright © 2007 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. [. . . ] DO NOT place jumper caps on the fan connectors.
Only CPU Fan supports Q-Fan.
CPU_FAN
GND CPU FAN PWR CPU FAN IN CPU FAN PWM
CHA_FAN
Rotation +12V GND
M2A-VM
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PWR_FAN
GND +12V Rotation
M2A-VM Fan connectors
6.
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port(s). Connect the S/PDIF module cable to this connector, then install the module to a slot opening at the back of the system chassis.
Digital audio connector (4-1 pin SPDIF_OUT)
SPDIF_OUT
M2A-VM
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M2A-VM Digital audio connector
The S/PDIF module is purchased separately.
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SPDIFOUT GND
+5V
Chapter 1: Product introduction
7.
These connectors are for USB 2. 0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2. 0 specification that supports up to 480 Mbps connection speed.
USB connectors (10-1 pin USB56, USB78, USB910)
M2A-VM
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USB+5V USB_P5USB_P5+ GND
M2A-VM. USB. 2. 0. connectors
Never connect a 1394 cable to the USB connectors. The USB 2. 0 module is purchased separately.
8.
These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.
CD (black)
Left Audio Channel Ground Ground Right Audio Channel
Optical drive audio in connector (4-pin CD)
M2A-VM
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M2A-VM Internal audio connector
To activate ASUS Music Alarm: · Connect the analog audio cable from the optical drive to the 4-pin CD-IN connector labeled CD on the motherboard. · Connect speakers or a headphone to the Line-Out (lime-colored) port on the front or rear panel for audio output. You may also connect speakers or a headphone to the output jack on the optical drive. 1-29
ASUS M2A-VM
USB+5V USB_P7USB_P7+ GND
USB+5V USB_P9USB_P9+ GND
PIN1
PIN1
PIN1
USB+5V USB_P10USB_P10+ GND NC
USB56
USB+5V USB_P6USB_P6+ GND NC
USB78
USB+5V USB_P8USB_P8+ GND NC
USB910
9. .
The connector is for a serial (COM) port. Connect the serial port module cable to the connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
Serial. port. connectors. (10-1. pin. COM1)
COM1
PIN 1
M2A-VM
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M2A-VM. COM. port. connector
10. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.
High-definition pin definition
GND PRESENCE# SENSE1_RETUR SENSE2_RETUR
Legacy AC'97-compliant pin definition
AGND NC NC NC
M2A-VM
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AAFP
PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L MIC2 MICPWR Line out_R NC Line out_L
M2A-VM Analog front panel connector · ·
We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard high-definition audio capability. If you want to connect a high-definition front panel audio module to this connector, make sure that the Front. Panel. Type item in the BIOS is set to [HD Audio]; if you want to connect an AC`97 front panel audio module to this connector, set the item to [AC97]. See page 2-25 for details.
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Chapter 1: Product introduction
11.
These connectors are for an ATX 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.
ATX12V
GND +12V DC GND +12V DC
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
EATXPWR
+3 Volts +12 Volts +12 Volts +5V Standby Power OK Ground +5 Volts Ground +5 Volts Ground +3 Volts +3 Volts Ground +5 Volts +5 Volts +5 Volts -5 Volts Ground Ground Ground PSON# Ground -12 Volts +3 Volts
M2A-VM
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M2A-VM. ATX. power. connectors ·
We recommend that you use an ATX 12 V Specification 2. 0-compliant power supply unit (PSU) with a minimum of 300 W power rating. If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the 20-pin power plug can provide at least 15 A on +12 V and that the PSU has a minimum power rating of 300 W. The system may become unstable or may not boot up if the power is inadequate. Do not forget to connect the 4-pin ATX +12 V 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. You must install a PSU with a higher power rating if you intend to install additional devices.
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ASUS M2A-VM
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12. . System. panel. onnector. (20-8. pin. PANEL) This connector supports several chassis-mounted functions.
PLED
PLED+ PLED-
SPEAKER
+5V Ground Ground Speaker
PANEL
IDE_LED+ IDE_LEDReset Ground PWR Ground
M2A-VM
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IDE_LED
RESET PWRSW
M2A-VM. System. panel. connector
* Requires an ATX power supply.
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System power LED This 2-pin connector is for the system power LED. [. . . ] Press <Enter> to save the changes while exiting.
Exit & Discard Changes
Select this option only if you do not want to save the changes that you made to the Setup program. If you made changes to fields other than System Date, System Time, and Password, the BIOS asks for a confirmation before exiting.
Load Setup Defaults
This option allows you to load the default values for each of the parameters on the Setup menus. When you select this option or if you press <F5>, a confirmation window appears. Select Exit & Save Changes or make other changes before saving the values to the non-volatile RAM.
Discard Changes
This option allows you to discard the selections you made and restore the previously saved values. [. . . ]