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 ge nerates, uses, and can radiate radio frequency
energy and, if not i nstalled 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.
Dichiar azione di co nformit à
sintetica
Ai sensi dell’art. 2 comma 3 del D.M.
275 del 30/10/2002
Si dichiara che questo prodotto è
conforme alle normative vigenti e
soddisfa i requisiti essenziali richiesti
dalle direttive
2004/108/CE, 2006/95/CE e
1999/05/CE
quando ad esso applicabili
Short De clar ation of conf ormity
We declare this product is complying
with the laws in force and meeting all
the essential requirements as specified
by the directives
Japane se ................................................................................................................ 46
CHAPTER 1: INTRODUCTION
A87L3G
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.
The operating temperatures of the computer should be
0 to 45 degrees Celsius.
1.2PACKAGE CHECKLIST
Serial ATA Cable X 2 Rear I/O Panel for ATX Case X 1 User’s Manual X 1 Fully Setup Driver CD X 1
Note: The package contents may be different due to area or your motherboard version.
1
Motherboard Manual
1.3 MOTHERBOARD FEATURES
Socket AM3
CPU
FSB
Chipset
Super I/O
Main
Memory
IDE Int eg rated ID E Co ntrolle r
SATA II Integrated Serial ATA Controller
LAN Realtek RTL 8111E
Sound ALC662
Slots
On Board
Connector
AMD Sempron / Athlon II / Phenom II
process ors (Maximum Watt: 65W)
Support HyperTransport 3.0
Supports up to 5.2 GT/s Bandwidth
Northbridgge: AMD RX881
Southbridge: AMD SB710
ITE 8721
Prov ides the most commonly used legac y
Super I/O functionality
DDR3 DIMM Slots x 2
Max Memory Capacity 16GB
Each DIMM supports 512MB/
1GB/2GB/4GB/8GB DDR3
PCI Express Gen2 x16 slot x1
PCI Express Gen2 x1 slot x1
PCI slot x3
IDE Connector x1 Each connector supports 2 IDE device
SATA Connector x4 Each conne ctor supports 1 SATA devices
Printer Port Connector x1 Each connector supports 1 Printer port
Front Panel Connector x1 Supports front panel facilit ies
Front Audio Connector x1 Supports front panel audio function
SPEC
AMD 64 Architecture enables 32 and 64 bit
computing
Supports Hyper Transport 3.0
Low Pin Count Interface
En vironment Co nt rol initiat ives
H/W Mon itor
ITE's "S mart Guardian" funct ion
Dual Cha nnel Mode DDR3 me mory module
Supports DDR3 800 / 1066 / 1333
Supports DDR3 1600 (OC)
Registered D IMM and ECC DIMM is not supported
Multi-word DMA, and Ultra DMA 33/66/100/133
mod es
Data transfer rates up to 3 Gb/s
SATA Version 2.5 s pe cification co mp liant
10 / 100 / 1000 Mb/s auto negotiation
Half / Full duplex capability
5.1 channels audio out
High Definition Audio
Supports PCI-E Gen2 x16 expansion card
Supports PCI-E Gen2 x1 expansion card
Supports PCI expansion cards
2
SPEC
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 C lear Header x1 Restore CMOS dat a to factory default
USB Connector x2 Each conne ctor supports 2 front panel USB ports
Power Connector (24pin) x1 Connects to Power supply
Power Connector (4pin) x1 Connects to Power supp ly
PS/2 Keyboard x 1
PS/2 Mouse x1
Back Panel
I/O
Board Size 182 mm(W) x 305 mm(L) ATX
Special
Features
OS Support Windows XP / Vista / 7
Serial Port x1
LAN Port x1
USB Port x4
Audio Jack x3
RAID 0 / 1 / 10 support
Connects to PS/2 Keyboard
Connects to PS/2 Mouse
Connects to RS-232 Port
Connect to RJ- 45 ethernet cable
Connect to 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.
A87L3G
1.4REAR PANEL CONNECTORS
PS/2
Mouse
P S/ 2
Keyboard
COM1USBX2USBX2
LAN
Line In/
Surround
Line Out
Mic In 1/
Bass/ Center
3
Motherboard Manual
1.5MOTHERBOARD LAYOUT
KBMS1
ATXPW R2
CO M1
USB1
RJ4 5U SB1
AUDIO1
LAN
JUSB V1
PEX16 _1
CPU_FAN1
AMD
RX881
ATXPW R1
Socke t AM3
DDR3_A1
DDR3_B1
IDE1
JCMOS1
BIOS
4
Super I/O
Codec
F_AU DI O1
Note: represents the 1■
JSPD IFOUT1
PEX1_1
J_PRIN T1
PCI1
PCI2
PCI3
st
SYS_FAN1
pin.
BAT
JUS BV2
SB710
F_USB1 F_U SB2
AMD
SATA1
SATA2
PANE L1
SATA3
SATA4
CHAPTER 2: HARDWARE INSTALLATION
A87L3G
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.
6
2.2 FANHEADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
CPU_FAN1: CPU Fan Header
14
SYS_FAN1: System Fan Header
Pin
Assignment
1 Ground
2 +12V
3
FAN RPM r ate
sense
4 Smart Fan
Control (By Fan)
Pin Assignment
1 Ground
2 +12V
3
FAN RPM r ate
sense
A87L3G
13
Note:
The CPU_FAN1 and SYS_FAN1 support 4-pin and 3-pin head connector. When
connecting with wires onto connectors, please note that the red wire is the positive and
should be co nnected to pin#2, and the black wire is Ground and should be connected to
GND.
7
Motherboard Manual
2.3 INSTALLING SYSTEM MEMORY
A. DDR3 Modules
DDR3 _A1
DDR3 _B1
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
B. Memory Capacity
DIMM Socket
Location
DDR3_A1 512MB/1GB/2GB/4GB/8GB
DDR3_B1 512MB/1GB/2GB/4GB/8GB
DDR3 Module
Total Memory Size
Max is 16GB.
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)
DDR3_A1 DDR3_B1
A87L3G
9
Motherboard Manual
2.4 CONNECTORS AND SLOTS
IDE1: Hard Disk Connector
The motherboard has a 32-bit Enhanced IDE Controller that provides PIO Mode
0~4, Bus Master, Multi-word DMA, and Ultra DMA 33/66/100/133 functionality.
40
SATA1~SATA4: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 4 channels SATA interface,
it satisfies the SATA 2.5 spec and with transfer rate of 3.0Gb/s.
39
2
1
Pin
Assignment
1 Ground
2 TX+
3 TX-
7
4
SATA 1
SATA 2
SATA 3
1
SATA 4
4 Ground
5 RX6 RX+
7 Ground
10
ATXP WR1: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
A87L3G
12
1
Pin Assignment Pin Assignment
24
13
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 Gro und 3 Gro und
16 PS_ON 4 +5V
17 Gro und 5 Gro und
18 Ground 6 +5V
19 Gro und 7 Gro und
20 NC 8 PW_OK
21 +5V 9 Standby Voltage+5V
22 +5V 10 +12V
23 +5V 11 +12V
24 Ground 12 +3.3V
ATXP WR2: ATX Power Source Connector
This connector provides +12V to CPU power circuit.
1
4
23
Pin
Assignment
1 +12V
2 +12V
3 Ground
4
Ground
11
Motherboard Manual
PEX16_1: PCI-Express Gen2 x16 Slot
- PCI-Express 2.0 compliant.
- Maximum theoretical realized bandwidth of 8GB/s simultaneously per
direction, for an aggregate of 16GB/s totally.
PEX1_1: PCI-Express Gen2 x1 Slot
- PCI-Express 2.0 compliant.
- Data transfer bandwidth up to 250MB/s per direction; 500MB/s in total.
- PCI-Express Gen2 supports a raw bit-rate of 2.5Gb/s on the data pins.
- 2X bandwidth over the PCI-Express 1.0 architecture.
This motherboard is equipped with 3 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.
PCI1
PCI2
PCI3
12
CHAPTER 3: HEADERS & JUMPERS SETUP
A87L3G
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 c
onnection. It allows user to connect the PC case’s front panel switch functions.
E
W
D
R
P
L
_
+
916
1
+
+
K
S
P
H
f
O
/
f
O
n
-
8
-
T
S
R
E
D
L
Pin Assignment Function Pin Assignment Function
1 +5V 9 N/A
2 N/A 10 N/A
3 N/ A 1 1 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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