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.
Dichiar azione di co nformità
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 clara tion 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
SATA3 Connector x1 Each connector s upports 1 SATA3 device
SATA2 Connector x3 Each connector s upports 1 SATA2 device
Front Panel Connector x1 Supports front panel facilities
Front Audio Connector x1 Supports front panel audio function
CPU Fan Header x1 CPU Fan power supply (with Smart Fan function)
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B75MU3B
SPEC
System Fan Header x1 System Fan Power supply
Clear CMOS Head er x1 Res tore CMOS dat a to factory defau lt
USB3.0 Connector x1 Each connector s upports 2 front panel USB3.0 port s
USB2.0 Connector x2 Each connector s upports 2 front panel USB2.0 port s
Printer Port Connector x1 Each connector supports 1 Printer port
Serial Port Connector x1 Connects to RS-232 Port
Power Connector (24pin) x1 Connects to Power supply
Power Connector (4pin) x1 Connects to Power supply
Rear Panel
I/O
Board Size
OS Support
PS/2 Keyboard x1
PS/2 Mouse x1
VGA Port x1
DVI-D Port x1
LAN port x1
USB3.0 Port x2
USB2.0 Port x2
Audio Jack x3
180 (W) x 244 (L) mm
Windows XP / Vista / 7
Connects to PS/2 Keyboard
Connects to PS/2 Mouse
Connect to D-SUB monitor
Connect to DVI monitor
Connect to RJ-45 ethernet cable
Connect to USB3.0 devices
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
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Motherboard Manual
1.4 REAR PANEL CONNECTORS
NOTE: DVI-D / VGA Output require an Intel Core family processor with Intel Graphics Technology.
NOTE: Since the audio chip supports High Definition Audio Specification, the function of each
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.
NOTE:Maximum resolution:
DVI: 1920 x 1200 @60Hz
VGA: 2048 x 1536 @75Hz
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1.5 MOTHERBOARD LAYOUT
B75MU3B
Note: represents the 1■
st
pin.
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Motherboard Manual
CHAPTER 2: HARDWARE INSTALLATION
2.1 I
NSTALLING CENTRAL PROCESSING UNIT (CPU)
Notice:
1. Remove Pin Cap before installation, and make good preservation for future use.
When the CPU is removed, cover the Pin Cap on the empty socket to ensure pin
legs won’t be damaged.
2. The motherboard might equip with two different types of pin cap. Please refer
below instruction to remove the pin cap.
Step 1: Pull the socket locking lever out from the socket then raise the
lever and load plate to the fully open position.
Step 2: Remove the Pin Cap.
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B75MU3B
Step 3: Hold processor with your thumb and index fingers, oriented as
shown. Align the notches with the socket. Lower the processor
straight down without tilting or sliding the processor in the socket.
Step 4: Close the load plate. Pressing down on the load plate, close and
engage the socket lever.
Step 5: Put the CPU Fan and heatsink assembly on the CPU and buckle it
on the retention frame. Connect the CPU FAN power cable into
the CPU_FAN1 to complete the installation.
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Motherboard Manual
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 r ate
sense
4 Smart Fan
Control
SYS_FAN1: System Fan Header
Pin
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
Note:
The SYS_FAN1 support 3-pin head connectors; the CPU_FAN1 supports 4-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.
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B75MU3B
2.3 INSTALLING SYSTEM MEMORY
A. Memory 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.
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Motherboard Manual
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
Disabled O X
Disabled X O
Enabled O O
(O means memory installed; X, not installed.)
Note:
The DRAM bus width of the memory module must be the same(x8 or x16)
DDR3_A1
10
DDR3_B1
Page 13
B75MU3B
1.4 CONNECTORS AND SLOTS
SATA1: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 1 channels SATA3 interface,
it satisfies the SATA 3.0 spec and with transfer rate of 6.0Gb/s.
Pin
Assignment
1 Ground
2 TX+
3 TX4 Ground
5 RX6 RX+
7 Ground
SATA2~SATA4: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 3 channels SATA2 interface,
it satisfies 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
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Motherboard Manual
ATXP WR2: AT X Power Source Connector
This connector provides +12V to CPU power circuit.
ATXP WR1: AT X Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
- Maximum theoretical realized bandwidth of 16GB/s simultaneously per
direction, for an aggregate of 32GB/s totally.
- PCI-Express Gen3 is supported by Core i7-3xxx / i5-3xxx CPUs.
PEX1_1: PCI-Express Gen2 x1 Slot
- PCI-Express 2.0 compliant.
- Data transfer bandwidth up to 500MB/s per direction; 1GB/s in total.
- PCI-Express supports a raw bit-rate of 5.0Gb/s on the data pins.
PCI1: Peripheral Component Interconnect Slot
This motherboard is equipped with 1 standard PCI slot. PCI stands for
Peripheral Component Interconnect, and it is a bus standard for expansion
cards. This PCI slot is designated as 32 bits.
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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.
14
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
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B75MU3B
JFRONT_USB3_1: Header for USB 3.0 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.
F_USB1/F_USB2: Headers for USB 2.0 Ports at Front Panel
These headers allow 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..
JCMOS1: Clear CMOS Header
Placing the jumper on pin2-3 allows user to restore the BIOS safe setting and
the CMOS data. Please carefully follow the procedures to avoid damaging the
motherboard.
Pin Assignment
1 Mic Left in
2 Ground
3 Mic Right in
4 GPIO
5 Right line in
6 Jack Sense
7 Front Sense
8 Key
9 Left line in
10 Jack Sense
16
13
Pin 1-2 Close:
Normal Operation (default).
Pin 2-3 Close:
Clear CMOS data.
※ Clear CMOS Procedures:
1. Remove AC power line.
2. Set the jumper to “Pin 2-3 close” .
3. Wait for five seconds.
4. Set the jumper to “Pin 1-2 close” .
5. Power on the AC.
6. Load Optimal Defaults and save settings in CMOS.
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J_COM1: Serial Port Connector
The motherboard has a Serial Port Connector for connecting RS-232 Port.
Pin
Assignment
1 Carrier detect
2 Received data
3 Transmitted data
4 Data terminal
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
10 NC
J_PRINT1: Printer Port Connector
This header allows you to connector printer on the PC.
Pin Assignment Pin Assignment
1 -Strobe 14 Ground
2 -ALF 15 Data 6
3 Data 0 16 Ground
4 -Error 17 Data 7
5 Data 1 18 Ground
6 -Init 19 -ACK
7 Data 2 20 Ground
8 -Scltin 21 Busy
9 Data 3 22 Ground
10 Ground 23 PE
11 Data 4 24 Ground
12 Ground 25 SCLT
13 Data 5 26 Key
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Motherboard Manual
CHAPTER 4: USEFUL HELP
4.1 D
RIVER INSTALLATION NOTE
After you installed your operating system, please insert the Fully Setup
Driver CD into your optical drive and install the driver for better system
performance.
You will see the following window after you insert the CD
The setup guide will auto detect your motherboard and operating system.
Note:
If this window didn’t show up after you insert the Driver CD, please use file browser to
locate and execute the file SETUP.EXE under your optical drive.
A. Driver Installation
To install the driver, please click on the Driver icon. The setup guide will
list the compatible driver for your motherboard and operating system.
Click on each device driver to launch the installation program.
B. Software Installation
To install the software, please click on the Software icon. The setup guide
will list the software available for your system, click on each software title
to launch the installation program.
C. Manual
Aside from the paperback manual, we also provide manual in the Driver
CD. Click on the Manual icon to browse for available manual.
Note:
Yo u will need Acrobat Reader to open the manual file. Please download the latest version
of Acrobat Reader software from
http://www.adobe.com/products/acrobat/readstep2.html
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B75MU3B
e
4.2 SOFTWARE
Installing Software
1. Insert the Setup CD to the optical drive. The drivers installation program
would appear if the Autorun function has been enabled.
2. Select Software Installation, and then click on the respective software
title.
3. Follow the on-screen instructions to complete the installation.
Launching Software
After the installation process, you will see the software icon “eHOT Line” /
“BIOS Update” appears on the desktop. Double-click the icon to launch the
utility.
eHot-Line (Optional)
eHot-Line is a convenient utility that helps you to contact with our
Tech-Support system. This utility will collect the system information which is
useful for analyzing the problem you may have encountered, and then send
these information to our tech-support department to help you fix the problem.
Before you use this uti lity, please set Outlook E xpress as your default e-mail client applica tion progra m.
re pr esen ts i mpor ta nt
*
information that you
must provide. Without
this information, y ou may
not be able to send out
the mail.
This block will show
the information which
would be collected in
the mail.
Describe condition
*
of your system.
Se nd th e mai l out .
Sav e thes e in forma tion to a .txt fil
Exit this dialog.
Select your area or
*
the area close to you.
Provide the e-mail
address that you would
like to send the copy to.
Pr ovid e the nam e of
*
the memory module
manufacturer.
Provide the name of
th e powe r su ppl y
manufacturer and the
model no.
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Motherboard Manual
After filling up this information, click “Send”
to send the mail out. A warning dialog would
appear asking for your confirmation; click
“Send” to confirm or “Do Not Send” to cancel.
If you want to save this information to a .txt file, click “Save As…” and then you
will see a saving dialog appears asking you to enter file name.
Enter the file name and then click
“Save”. Your system information
will be saved to a .txt file.
20
Open the sa ved .txt file, you will see
your system information including
motherboard/BIOS/CPU/video/
device/OS information. This
information is also concluded in the
sent mail.
We will not share customer ’s data with any other third parties,
so please feel free to provide your system information while using
eHot-Line service.
If you are not using Outlook Express as your default e-mail client
application, you may need to save the system information to a .txt file
and send the file to our tech support with other e-mail application.
Go to the following web
http://www.biostar.com.tw/app/en-us/about/contact.php for getting
our contact information.
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B75MU3B
n
BIOS Update
BIOS Update is a convenient utility which allows you to update your
motherboard BIOS under Windows system.
Sh ow current BIOS inform atio
Update BIOS
from the Internet
with a BIOS fil e
Update BIOS
Save current BIOS
to a .bin file
<Backup BIOS>
Once click on this button, the saving
dialog will show. Choose the
position to save file and enter file
name. (We recommend that the file
name should be English/number
and no longer than 7 characters.)
Then click Save.
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Motherboard Manual
<Update BIOS>
Before doing this, please download the proper BIOS file from the website.
Then click Update BIOS button, a
dialog will show for asking you backup
current BIOS. Click Ye s for BIOS
backup and refer to the Backup BIOS
procedure; or click No to skip this
procedure.
After the BIOS Backup procedure, the
open dialog will show for requesting the
BIOS file which is going to be updated.
Please choose the proper BIOS file for
updating, then click on Open.
The utility will update BIOS with the
proper BIOS file, and this process may
take minutes. Please do not open any
other applications during this process.
After the BIOS Update process, click on
OK to restart the system.
While the system boots up and the full screen logo shows, press <Delete>
key to enter BIOS setup.
In the BIOS setup, use the Load Optimized Defaults function and then Save and Exit Setup to exit BIOS setup. BIOS Update is completed.
All the information and content above about the software are subject to be changed
without notice. For better performance, the software is being co ntinuously updated.
The information and pictures described above are for your reference only. The actual
information and settings on board may be slightly different from this manual.
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B75MU3B
Intel® Small Business Advantage
Intel Small Business Advantage (Intel SBA) provides an out-of-the-box hardware-based
security and productivity suite designed for the small business user.
Supported Operating Systems:
z Windows 7 Professional 64-bit and 32-bit
z Windows 7 Enterprise 64-bit
Installing Intel SBA
This procedure describes how to install Intel SBA.
1. Logon to the computer with a user that has administrator privileges.
2. Copy the Setup.exe file to the computer.
3. Double-click Setup.exe.
The Welcome to the Setup Program window opens.
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Motherboard Manual
4. Click Next. The installer starts the installation and the Setup Progress window
opens showing the progress of the installation. When installation is complete, the
installer starts the Intel SBA service and the Next button is enabled.
5. Click Next. The Setup Is Complete window opens.
6. Click Finish. The installer closes.
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4.3 EXTRA INFORMATION
CPU Overheated
If the system shuts down automatically after system is powered on for
seconds, the phenomenon means the CPU protection function has
been activated.
When the CPU is over heated, the motherboard will shutdow n
automatically to avoid a damage of the CPU, and the system may not
power on again.
In this case, please double check:
1. The CPU cooler surface is placed evenly with the CPU surface.
2. CPU fan is rotated normally.
3. CPU fan speed is fulfilling with the CPU speed.
After confirmed, please follow steps below to relief the CPU protection
function.
1. Remove the power cord from power supply for seconds.
2. Wait for seconds.
3. Plug in the power cord and boot up the system.
Or you can:
1. Clear the CMOS data.
(See “Close CMOS Header: JCMOS1” section)
2. Wait for seconds.
3. Power on the system again.
B75MU3B
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4.4 AMIBIOSBEEP CODE
Boot Block Beep Codes
Number of Beeps De scription
1 No media present. (Insert diskette in floppy drive A:)
2
3 Insert next diskette if multiple diskettes are used for recovery
4 Flash Programming successful
5 File read error
7 No Flash EPROM detected
10 Flash Erase error
11 Flash Program error
12 “AMIBOOT.ROM” file size error
13
POST BIOS Beep Codes
Number of Beeps De scription
1 Memory refresh timer error
3 Base memory read/write test error
6 Keyboard controller BAT command failed
7 General exception error (processor exception interrupt error)
8 Display memory error (system video adapter)
“AMIBOOT.ROM” file not found in root directory of diskette in
A:
BIOS ROM image mismatch (file layout does not match
image present in flash device)
Troubleshooting POST BIOS Beep Codes
Number of Beeps Troubleshooting Action
1, 3 Reseat the memory, or replace with known good modules.
Fatal error indicating a serious problem with the system.
Consult your system manufacturer. Before declaring the
motherboard beyond all hope, eliminate the possibility of
interference by a malfunctioning add-in card. Remove all
expansion cards except the video adapter.
z If beep codes are generated when all other expansion
6, 7
8
26
cards are absent, consult your system manufacturer’s
technical support.
z If beep codes are not generated when all other expansion
cards are absent, one of the add-in cards is causing the
malfunction. Insert the cards back into the system one at a
time until the problem happens again. This will reveal the
malfunctioning card.
If the system video adapter is an add-in card, replace or
reseat the
video adapter. If the video adapter is an integrated part of the
system board, the board may be faulty.
Page 29
4.5 TROUBLESHOOTING
Probable Solution
1. There is no power in the system.
Power LED does not shine; the
fan of the power supply does not
work
2. Indicator light on keyboard does
not shine.
System is inoperative. Keyboard lights
are on, power indicator lights are lit,
and hard drives are running.
System does not boot from a hard disk
drive, but can be booted from optical
drive.
System only boots from an optical
drive. Hard disks can be read,
applications can be used, but system
fails to boot from a hard disk.
Screen message shows “Invalid
Configuration” or “CMOS Failure.”
System cannot boot after user installs a
second hard drive.
B75MU3B
1. Make sure power cable is
securely plugged in.
2. Replace cable.
3. Contact technical support.
Using even pressure on both ends of
the DIMM, press down firmly until the
module snaps into place.
1. Check cable running from disk to
disk controller board. Make sure
both ends are securely plugged
in; check the drive type in the
standard CMOS setup.
2. Backing up the hard drive is
extremely important. All hard
disks are capable of breaking
down at any time.
1. Back up data and applications
files.
2. Reformat the hard drive.
Re-install applications and data
using backup disks.
Review system’s equipment. Make sure
correct information is in setup.
1. Set master/slave jumpers
correctly.
2. Run SETUP program and select
correct drive types. Call the drive
manufacturers for compatibility
with other drives.
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Motherboard Manual
APPENDIX: SPEC IN OTHER LANGUAGES
G
ERMAN
Sp ezif ika tio nen
CPU
Chipsatz
Super E/A
Arbeitsspeich
er
SATA 2/3
LAN
HD
Audio-Unters
tützung
Socket 1155
Int el Cor e i7 / i5 / i3 / Pent ium / Ce leron
Prozessoren
Int el B7 5
IT8728
Biet et die häuf ig ver wendeten alten Super
E/A-Funktionen.
Low Pin Count-Schnittstelle
DDR3 DIMM-Steckplätze x 2
Max. 16GB Arbeitsspeicher
Jeder DIMM unterstützt 512MB/
1GB/2GB/4GB/8GB DDR3.
Integrierter Serial ATA-Controller
RTL8111F
ALC662
Unterstützt Execute Disable Bit / Enhanced Intel
SpeedStep® / Intel Archite cture- 64 / Extended
Memory 64 Technology / V irtualization Technology /
Hyper Threading
Umgebungskontrolle,
Hardware-Überwachung
Lüfterdrehzahl-Controller/-Überwachung
"Smart Guardian"-Funktion von ITE
Dual-Kanal DDR3 Speichermodul
Unterstützt DDR3 1066 / 1333 /
Unterstützt DDR3 1600 (Depending on CPU)
registrierte DIMMs. ECC DIMMs werden nicht
unterstützt.
Datentransferrate bis zu 3.0/ 6.0 Gb/s
Konform mit der SATA-Spezifikation Version 2.0/3.0