This equipment has been tested and found to comply with the limits of a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. There is no guarantee
that interference will not occur in a particular installation.
The vendor makes no representations or warranties with respect to the
contents here and specially disclaims any implied warranties of merchantability
or fitness for any purpose. Further the vendor reserves the right to revise this
publication and to make changes to the contents here without obligation to
notify any party beforehand.
Duplication of this publication, in part or in whole, is not allowed without first
obtaining the vendor’s approval in writing.
The content of this user’s manual is subject to be changed without notice and
we will not be responsible for any mistakes found in this user’s manual. All the
brand and product names are trademarks of their respective companies.
Japanese ................................................................................................................ 46
A780L M2G+/A780L M2L+/A780L
CHAPTER 1: INTRODUCTION
1.1 B
EFORE YOU START
Thank you for choosing our product. Before you start installing the
motherboard, please make sure you follow the instructions below:
Prepare a dry and stable working environment with
sufficient lighting.
Always disconnect the computer from power outlet
before operation.
Before you take the motherboard out from anti-static
bag, ground yourself properly by touching any safely
grounded appliance, or use grounded wrist strap to
remove the static charge.
Avoid touching the components on motherboard or the
rear side of the board unless necessary. Hold the board
on the edge, do not try to bend or flex the board.
Do not leave any unfastened small parts inside the
case after installation. Loose parts will cause short
circuits which may damage the equipment.
Keep the computer from dangerous area, such as heat
source, humid air and water.
1.2PACKAGE CHECKLIST
HDD Cable X 1 (optional) Serial ATA Cable X 2 Rear I/O Panel for ATX Case X 1 Installation Guide X 1 Fully Setup Driver CD X 1 (full version manual files inside) FDD Cable X 1 (optional) USB 2.0 Cable X1 (optional) S/PDIF out Cable X 1 (optional) Serial ATA Power Cable X 1 (optional)
Note: The package contents may be different due to area or your motherboard version.
Floppy Connector x1 Each connector supports 2 Floppy drives
IDE Connector x1 Each connector supports 2 IDE device
SATA Connector x4 Each connector supports 1 SATA devices
SPEC
AMD 64 Architecture enables 32 and 64 b it
computing
Supports Hyper Transport 3.0
Low Pin Count Interface
En viro nment Cont rol in it iatives
H/W Mon itor
ITE's "S mart Guard ian" funct ion
Dual Channe l Mod e DDR2 me mory modu le
Supports DDR2 533 / 667 / 800
Supports DDR2 1066 (by AM2+/AM3 CPU)
Register ed DIMM and ECC D IMM is not suppo rted
Max S hared V ideo Me mo ry is 512MB
DVI support
Ultra DMA 33 / 66 / 100 / 133 Bus Master Mode
supports PIO Mode 0~4,
Data transfer rates up to 3 Gb/s
SATA Versio n 2. 0 s pecif icat ion co mplian t
10 / 100 / 1000 Mb/s auto negotiation
10 / 100 Mb/s auto negot iation
5.1 channels audio out
High Definition Audio
A780L M2G+/A780L M2L+/A780L
SPEC
Front Panel Connector x1 Supports front panel facilities
Front Audio Connector x1 Supports front panel audio function
S/PDIF out Connector x1 Supports digital audio out function
CPU Fan Header x1 CPU Fan power supply (with Smart Fan function)
System Fan Header x1 System Fan Power supply
CMOS clear Header x1 Restore CMOS data to factory default
USB Connector x2 Each connect or supports 2 fro nt panel USB ports
Power Connector (24pin) x1 Connects to Power supp ly
Power Connector (4pin) x1 Connects to Power supply
Printer Port Connector x1 Each connector supports 1 Printer port
Serial Port Connector x1 Connects to RS-232 Port (A780L M2G+)
PS/2 Keyboard x1
PS/2 Mous e x1
Back Panel
I/O
Board Size 182 mm(W) x 235 mm(L)
Special
Features
OS Support Windows XP / Vista 32 / Vista 64 / 7
DVI port x1
VGA port x1
LAN port x1
USB Port x4
Audio Jack x3
RAID 0 / 1 / 1+0 support
1.4 R
EAR PANEL CONNECTORS
Connects to PS/2 Keyboard
Connects to PS/2 Mouse
Connect to DVI-D monitor
Connect to D-SUB monitor
Connect to RJ-45 Ethernet cable
Connect t o USB devices
Provide Audio-In/Out and microphone connection
Biostar reserves the right to add or remove support
for any OS With or without notice.
PS/2
Mou se
PS/2
Keyboard
VGA
DVI-D
LAN
Line In/
Surr ound
Line Out
Mic In 1/
Bass/ Center
USB X2USBX2
3
Motherboard Manual
1.5MOTHERBOARD LAYOUT
KBMS1
VGA 1
DVI 1
USB1
RJ45USB1
AUDIO1
F_AUDIO1
ATXPWR 2
LAN
JUSBV1
RS780L
PEX16_1
AMD
CPU_FAN1
Socket AM2+
ATXPWR1
DIMMA1
DIMMB1
IDE1
BATTERY
4
Super
I/O
Codec
Note: represents the 1■
(A780L M2G+ Only)
JSPDIFOUT1
FDD1
J_PRINT1J_COM1
PCI1
PCI2
st
pin.
JUSBV2
PAN EL 1
JCMOS1
F_USB1
F_ USB2
SATA1SATA2
AMD
SB710
BIOS
SATA4
SATA3
SYS_FAN1
A780L M2G+/A780L M2L+/A780L
CHAPTER 2: HARDWARE INSTALLATION
2.1 I
NSTALLING CENTRAL PROCESSING UNIT (CPU)
Step 1: Pull the lever toward direction A from the socket and then raise the
lever up to a 90-degree angle.
Step 2: Look for the white triangle on socket, and the gold triangle on
CPU should point towards this white triangle. The CPU will fit only
in the correct orientation.
5
Motherboard Manual
Step 3: Hold the CPU down firmly, and then close the lever toward direct
B to complete the installation.
Step 4: Put the CPU Fan on the CPU and buckle it. Connect the CPU
FAN power cable to the CPU_FAN1. This completes the
installation.
Note: Please update the BIOS to the latest version while using AM2+/AM3 CPUs. Due to the latest
CPU transition, you may encounter the situation that the new system failed to boot while
using new AM2+/AM3 CPUs. In this case, please install one standard AM2 CPU to boot your
system, and update the latest BIOS from our website for AM2+/AM3 CPUs support.
6
A780L M2G+/A780L M2L+/A780L
2.2 FANHEADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different due to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
CPU_FAN1: CPU Fan Header
4
1
SYS_FAN1: System Fan Header
Pin
Assignment
1 Ground
2 +12V
3
FAN RPM r at e
sense
4 Smart Fan
Control (By Fan)
Pin
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
3
1
Note:
The CPU_FAN1 supports 4-pin head connector. The SYS_FAN1 supports 3-pin head
connector. When connecting with wires onto connectors, please note that the red wire is
the positive and should be connected to pin#2, and the black wire is Ground and should
be connected to GND.
7
Motherboard Manual
2.3 INSTALLING SYSTEM MEMORY
A. Memory Modules
DIMMB1
DIMMA1
1. Unlock a DIMM slot by pressing the retaining clips outward. Align a
DIMM on the slot such that the notch on the DIMM matches the
break on the Slot.
2. Insert the DIMM vertically and firmly into the slot until the retaining
chip snap back in place and the DIMM is properly seated.
8
A780L M2G+/A780L M2L+/A780L
B. Memory Capacity
DIMM Socket
Location
DIMMA1 256MB/512MB/1GB/2GB/4GB
DIMMB1 256MB/512MB/1GB/2GB/4GB
DDR2 Module
Total M emory
Size
Max is 8GB.
C. Dual Channel Memory installation
Please refer to the following requirements to activate Dual Channel function:
Install memory module of the same density in pairs, shown in the table.
Dual Channel Status
Disabled O X
Disabled X O
Enabled O O
(O means memory installed, X means memory not installed.)
The DRAM bus width of the memory module must be the same (x8 or
x16)
DIMMA1
DIMMB1
9
Motherboard Manual
2.4 CONNECTORS AND SLOTS
FDD1: Floppy Disk Connector
The motherboard provides a standard floppy disk connector that supports 360K,
720K, 1.2M, 1.44M and 2.88M floppy disk types.
234
133
IDE1: Hard Disk Connector
The motherboard has a 32-bit Enhanced PCI IDE Controller that provides PIO
Mode 0~4, Bus Master, and Ultra DMA 33/66/100/133 functionality.
3940
21
SATA1~SATA4: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 4channels SATA interface, it
satisfies the SATA 2.0 spec and with transfer rate of 3Gb/s.
Pin Assignment
1 Ground
2 TX+
3 TX4 Ground
SATA4
SATA3
SATA1 SATA2
5 RX6 RX+
7 Ground
10
147
A780L M2G+/A780L M2L+/A780L
ATXP W R1: AT X Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
This motherboard is equipped with 2 standard PCI slots. PCI stands for
Peripheral Component Interconnect, and it is a bus standard for expansion
cards. This PCI slot is designated as 32 bits.
PEX16_1
12
PCI1
PCI2
A780L M2G+/A780L M2L+/A780L
CHAPTER 3: HEADERS & JUMPERS SETUP
3.1 H
OW TO SETUP JUMPERS
The illustration shows how to set up jumpers. When the jumper cap is
placed on pins, the jumper is “close”, if not, that means the jumper is
“open”.
Pin opened Pin closed Pin1-2 closed
3.2 DETAIL SETTINGS
PANEL1: Front Panel Header
This 16-pin connector includes Power-on, Reset, HDD LED, Power LED, and
speaker connection. It allows user to connect the PC case’s front panel switch
functions.
PWR_LED
On/Off
-
9
1
++
SPK
-
+
HLED
16
8
RST
Pin Assignment Function Pin Assignment Function
1 +5V 9 N/A
2 N/A 10 N/A
3 N/ A 11 N/A N/A
4 Speaker
5 HDD LED (+) 13 Power LED (+)
6 HDD LED (-)
7 Ground 15 Power button
8 Reset control
Speaker
Connector
Hard drive
LED
Reset button
12 Power LED (+)
14 Power LED (-)
16 Ground
N/A
Power LED
Power-on button
13
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