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 t he 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 nform ità
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
SATA Connector x4 Each connect or s upports 1 SATA device
Front Panel Connector x1 Supports front panel facilities
Front Audio Connector x1 Supports front panel audio function
On Board
CPU Fan Header x1 CPU Fan power supply (with Smart Fan function)
Connectors
System Fan Header x1 System Fan Power supply
CMOS clear Header x1 Restore CMOS data to factory default
USB2.0 Connector x2 Each connector supports 2 fro nt panel USB2.0 po rts
2
5.1channels audio out
Supports HD Audio
A55MLC2/A55MLV2/A55MGC
SPEC
Serial Port Connector x1 Connects to RS-232 Port
Power Connector (24-Pin) x1 Connects to Power supply
Power Connector (4-Pin) x1 Connects to Power supp ly
PS/2 Keyboard / Mous e x1
VGA Port x1
Rear Panel
LAN port x1
I/O
USB2.0 Port x4
Audio Jack x3
Board Size 175 mm (W) x 226 mm (L) uATX
OS
Windows XP / Vista / 7
Support
Connects to PS/2 Keyboard / Mouse
Connect to D-SUB monitor
Connect to RJ-45 ethernet cable
Connect to USB2.0 devices
Provide Audio-In/Out and Mic. connection
Biostar reserves the right to add or remove support
for any OS With or without notice.
1.4 REAR PANEL CONNECTORS
NOTE: VGA Output require an AMD family processor with intedrated graphics.
NOTE: Since the audio chip supports High Definition Audio Specification, the function of each
NOTE: Maximum resolution:
audio jack can be defi ned by software. The input / output function of each audio jack listed
above represents the default setting. However, when connecting external microphone to
the audio port, please use the Line In (Blue) and Mic In (Pink) audio jack.
VGA: 1920 x 1600 @75Hz
3
Motherboard Manual
1.5 MOTHERBOARD LAYOUT
4
Note: represents the 1■
st
pin.
A55MLC2/A55MLV2/A55MGC
CHAPTER 2: HARDWARE INSTALLATION
2.1 I
NSTALLING CENTRAL PROCESSING UNIT (CPU)
Step 1: Pull the socket locking out from the socket and then raise the
lever up to a 90-degree angel.
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 to locked the
position
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
A55MLC2/A55MLV2/A55MGC
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
Pin
Assignment
1 Ground
2 +12V
3
FAN RPM rate sense
4 Smart Fan Control (By Fan)
SYS_FAN1: System Fan Header
Pin Assignment
1 Ground
2 +12V
3
FAN RPM rate sense
Note:
CPU_FAN1, SYS_FAN1 support 4-pin and 3-pin head connectors. 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. DDR3 Modules
Step1:
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.
8
A55MLC2/A55MLV2/A55MGC
Step2:
Insert the DIMM vertically and firmly into the slot until the retaining chip snap
back in place and the DIMM is properly seated.
Note:
If the DIMM does not go in smoothly, do not force it. Pull it all the way out and try again.
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 DDR3_A1 DDR3_B1
Disabled O X
Disabled X O
Enabled O O
(O means memory installed, X means memory not installed.)
Note:
The DRAM bus width of the memory module must be the same (x8 or x16)
D. DDR Speed Support
Please refer to the following table for DDR speed reference:
# of DIMM per Channel # of Ranks per DIMM
1 of 1 UDIMM xR DDR3-1866
1 of 2 UDIMMs xR DDR3-1600 / DDR3-1333
Max DDR Speed Grade
for 1.50V DIMM
Note:
xR: Single or double side memory moudule
9
Motherboard Manual
2.4 CONNECTORS AND SLOTS
ATXP W R2: ATX Power Source Connector
This connector will provide +12V to CPU power circuit.
Pin Assignment
1 +12V
2 +12V
3 Ground
4 Ground
ATXP W R1: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
Note: Before you power on the system, please make sure that both ATXPWR1 and
ATXPWR2 connectors have been plugged-in.
10
A55MLC2/A55MLV2/A55MGC
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.
- PCI-Express Gen2 supports a raw bit-rate of 5.0Gb/s on the data pins.
PEX1_1: PCI-Express x1 Slot
- PCI-Express 2.0 compliant.
- Data transfer bandwidth up to 500MB/s per direction; 1GB/s in total.
SATA1~SATA4: Serial ATA Connectors
These connectors connect to SATA hard disk drives via SATA cables.
Those satisfy the SATA 2.0 spec and with transfer rate of 3.0Gb/s.
Assignment
Pin
1 Ground
2 TX+
3 TX4 Ground
5 RX6 RX+
7 Ground
11
Motherboard Manual
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.
12
Pin Assignment Function Pin Assignment Function
1 +5V
2 N/A 10 N/A
3 N/ A 11 N/ A N/A
4 Speaker 12 Power LED (+)
5 HDD LED (+)
6 HDD LED (-) 14 Power LED (-)
7 Ground
8 Reset control 16 Ground
Speaker
Connector
Hard drive
LED
Reset button
9 N/A
13 Power LED (+)
15 Power button
N/A
Power LED
Power-on button
A55MLC2/A55MLV2/A55MGC
F_USB1/F_USB2: Headers for USB 2.0 Ports at Front Panel
This header allows user to connect additional USB cable on the PC front panel,
and also can be connected with internal USB devices, like USB card reader.
This header allows user to connect the front audio output cable with the PC front
panel. This header supports HD and AC’97 audio front panel connector.
HD Audio AC’97
Pin Assignment Pin Assignment
1 Mic Left in 1 Mic In
2 Ground 2 Ground
3 Mic Right in 3 Mic Power
4 GPIO 4 Audio Power
5 Right line in 5 RT Line Out
6 Jack Sense 6 RT Line Out
7 Front Sense 7 Reserved
8 Key 8 Key
9 Left line in 9 LFT Line Out
10 Jack Sense 10 LFT Line Out
Note1: It is recommended that you connect a high-definition front panel audio module to
this connector to avail of the motherboard's high definition audio capability.
Note2: Please try to disable the "Front Panel Jack Detection" if you want to use an
AC'97 front audio output cable. The function can be found via O.S. Audio Utility.
13
Loading...
+ 34 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.