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 confor mità
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 claration of c onformity
We declare this product is complying
with the laws in force and meeting all
the essential requirements as specified
by the directives
SATA3 Connector x2 Each conne cto r supports 1 SATA3 devices
SATA2 Connector x4 Each conne cto r supports 1 SATA2 devices
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)
System Fan Header x1 System Fan Power supply
Clear CMOS Head er x1 Restore CMOS data to factory def au lt
USB2.0 Co nnector x2 Each connector supports 2 front panel USB2.0 ports
USB3.0 Co nnector x1 Each connector supports 2 front panel USB3.0 ports
Consumer IR Connector x1 Supports infrared funct ion
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 supp ly
Power Connector (4pin) x1 Connects to Power supply
Back Panel
I/O
Board Size
OS Support
PS/2 Keyboard x1
HDMI Port x1
VGA Port x1
DVI Port x1
LAN port x1
USB2.0 Port x2
USB3.0 Port x2
Audio Jack x3
220 (W) x 244 (L) mm ATX
Windows XP / Vista / 7
Connects to PS/2 Keyboard
Connects to HDMI cable
Connect to D-SUB monitor
Connect to DVI monitor
Connect to RJ-45 ethernet cable
Connect to USB2.0 devices
Connect to USB3.0 devices
Provide Audio-In/Out and Mic. connection
Biostar reserves the r ight to add or remove support
for any OS with or without notice
3
Motherboard Manual
1.4REAR PANEL CONNECTORS
PS/2
Keyboard / Mouse
US B2 .0X 2
HDMIVGADVI-D
LAN
USB3.0X2
Line In/
Surround
Line Out
Mic In 1/
Bass/ Center
NOTE: HDMI, DVI-D & VGA ports only work with an Intel integrated Graphics Processor.
NOTE: USB3.0 (only supported by Windows 7) ports are backward compatible with
NOTE: Maximum resolution:
NOTE: This motherboard supports Multiple VGA output:
USB2.0/USB1.X de vices.
HDMI: 1920 x 1200 @60Hz, compliant with HDMI 1.4a
DVI: 1920 x 1200 @60Hz
VGA: 2048 x 1536 @75Hz
Display Devices
VGA
DVI-D HDMI
VGA X A A
DVI-D A X S1, C, E
HDMI A S1, C, E X
zA = Single Pipe Single Display, Intel® Dual Display Clone (Only
24-bpp), or Extended Desktop Mode
z C = Clone Mode
z E = Extended Desktop Mode
1
z S
z X = Unsupported / Note Applicable
= Single Pipe Single Display With One Display Device
Disabled
4
1.5 MOTHERBOARD LAYOUT
H77MU3
US B_KBMS 1
VGA1
HD MI 1
DVI1
RJ45USB1
AUDI O1
CODEC
J_COM1
F_AUDIO1
Super
I/O
PEX1_1
PEX1_2
J_PR INT1
Socket 1155
PEX16_1
LAN
CIR1
PEX16_2
SYS_FA N1
JFRONT_USB3_1
CPU1
BAT1
CPU_FAN1
H77
F_USB2 F_USB1
DDR3_A1
PANE L1
DDR3_A2
DDR3_B1
DD R3 _B 2
ATXP WR 1
BIOS
JC MOS1
SATA1
SATA2
SATA5
Note: represents the 1■
st
pin.
SATA6SATA3
SATA4
5
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 and then raise
the lever up.
Step 2: Remove the Pin Cap.
6
H77MU3
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: Hold the CPU down firmly, and then lower the lever to locked
position to complete the installation.
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.
7
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 manufact urer.
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
41
4 Smart Fan Control
SYS_FAN1: System Fan Header
Pin
1 Ground
2 +12V
3 FAN RPM rate sense
3
1
Note:
The SYS_FAN1 supports 3-pin head connector; 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 pi n#2, and the black wire is Ground and should
be connected to GND.
FAN RPM rate sense
Assignment
8
H77MU3
2.3 INSTALLING SYSTEM MEMORY
A. Memory Modules
DDR3_A1
DDR3_B1
DDR3_A2
DDR3_B2
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.
Note:
If the DIMM does not go in smoothly, do not force it. Pull it all the way out and try again.
9
Motherboard Manual
B. Memory Capacity
DIMM Socket
Location
DDR3_A1 512MB/1GB/2GB/4GB/8GB
DDR3_A2 512MB/1GB/2GB/4GB/8GB
DDR3_B1 512MB/1GB/2GB/4GB/8GB
DDR3_B2 512MB/1GB/2GB/4GB/8GB
DDR3 Module
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_A2 DDR3_B1 DDR3_B2
Enabled O X O X
Enabled X O X O
Enabled O O O O
Enabled O X X O
Enabled X O O X
(O means memory installed, X means memory not installed.)
The DRAM bus width of the memory module must be the same (x8 or
x16)
Total Mem ory
Size
Max is 32GB.
10
H77MU3
2.4 CONNECTORS AND SLOTS
SATA1/SATA2: Serial ATA3.0 Connectors
The motherboard has a PCI to SATA Controller with 2 channels SATA interface,
it satisfies the SATA 3.0 spec and with transfer rate of 6.0Gb/s.
Assignment
Pin
Pin
1 Ground
2 TX+
3 TX4 Ground
5 RX6 RX+
7 Ground
Assignment
1 Ground
2 TX+
3 TX4 Ground
5 RX6 RX+
7 Ground
SATA1
SATA2
14 7
SATA3 ~ 6: Serial ATA2.0 Connectors
The motherboard has a PCI to SATA Controller with 4 channels SATA2 interface,
it satisfies the SATA 2.0 spec and with transfer rate of 3.0Gb/s.
SATA 5 S ATA3
SATA 6 S ATA4
14 7
11
Motherboard Manual
PEX16_1: PCI-Express Gen3 x16 Slot
- PCI-Express 3.0 compliant.
- Maximum theoretical realized bandwidth of 16GB/s simultaneously per
direction, for an aggregate of 32GB/s totally.
- PCI-Express Gen3 supports a raw bit-rate of 8.0Gb/s on the data pins.
- PCI-E 3.0 is supported by Core i7-3xxx / i5-3xxx CPU.
PEX16_2: PCI-Express Gen2 x4 Slot
- PCI-Express 2.0 compliant.
- Maximum theoretical realized bandwidth of 2GB/s simultaneously per
direction, for an aggregate of 4GB/s totally.
PEX1_1/PEX1_2: 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 2.5Gb/s on the data pins.
- 2X bandwidth over the traditional PCI architecture.
PEX16_1
12
PEX1_1
PEX1_2
PEX16_2
H77MU3
ATXP W R1: AT X Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
This connector provides +12V to CPU power circuit.
12
24
13
Pin Assignment
1 +12V
34
2 +12V
3 Ground
4 Ground
Note:
Before you power on the system, please make sure that ATXPWR1 and ATXPWR2
connectors have been well plugged-in.
13
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 D
PANEL1: Front Panel Header
ETAIL SETTINGS
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.
9
1
POW_LED
SPK
++
HLED
+
On/Off
-
-
RST
16
8
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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