BIOSTAR A320MH Motherboard User Manual

BIOSTAR A320MH Motherboard

FCC Information and Copyright

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 change 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.

Short Declaration of conformity
We declare this product is complying with the laws in force and meeting all the essential requirements as specified by the directives 2004/108/CE, 2006/95/CE and 1999/05/CE whenever these laws may be applied

Introduction

Before 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 the power outlet before operation.
• Before you take the motherboard out from the anti-static bag, ground yourself properly by touching any safely grounded appliance, or use a grounded wrist strap to remove the static charge.
• Avoid touching the components on the 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 a dangerous area, such as heat source, humid air and water.
• The operating temperatures of the computer should be 0 to 45 degrees Celsius.
• To avoid injury, be careful of:
  • Sharp pins on headers and connectors
  • Rough edges and sharp corners on the chassis
  • Damage to wires that could cause a short circuit

Package Checklist

• Serial ATA Cable x2
• Rear I/O Panel for ATX Case x1
• Quick Installation Guide x1
• Fully Setup Driver DVD x1

Note
The package contents may be different due to the sales region or models in which it was sold. For more information about the standard package in your region, please contact your dealer or sales representative.

Specifications

Specifications

CPU Support| Socket AM4 supports AMD® A-series APU, Ryzen APU / Ryzen CPU

• Please refer to www.biostar.com.tw for CPU support list.

Chipset| AMD® A320

Memory

| Supports Dual Channel DDR4 1866/2133/2400/2667/2933

2 x DDR4 DIMM Memory Slot, Max. Supports up to 32 GB Memory

Each DIMM supports non-ECC 8/16 GB DDR4 module

• DDR4 – 2933 only for Ryzen2 CPU.

• Please refer to www.biostar.com.tw for Memory support list.

Storage| 4x SATA III Connector (6Gb/s) : Supports AHCI & RAID 0, 1, 10
LAN| Realtek RTL 8111H

10/ 100/ 1000 Mb/s auto-negotiation, Half / Full duplex capability

Audio Codec| ALC887

7.1 Channels, High-Definition Audio

USB

| 4x USB 3.1 Gen1 (5Gb/s) port (2 on rear I/Os and 2 via internal headers)

8x USB 2.0 port (4 on rear I/Os and 4 via internal headers)

Expansion Slots| 2x PCIe 2.0 x1 Slot

1x PCIe 3.0 x16 Slot (When using APU, the bandwidth is x8 speed)

Rear I/Os

| 1x PS/2 Keyboard / Mouse

1x VGA Port 1x HDMI Port 1x LAN port

2x USB 3.1 Gen1 (5Gb/s) Port 4x USB 2.0 Port

3x Audio Jack

Internal I/Os

| 4x SATA III 6.0Gb/s Connector

2x USB 2.0 Header (each header supports 2 USB 2.0 ports)

1x USB 3.1 Gen1 (5Gb/s) Header (each header supports 2 USB 3.1 Gen1 ports)

1x 4-Pin Power Connector 1x 24-Pin Power Connector 1x CPU Fan Connector

1x System Fan Connector 1x Front Panel Header

1x Front Audio Header 1x COM Serial Header

1x Clear CMOS Header

Form Factor| uATX Form Factor, 226 mm x 174 mm
OS Support| Windows 7(64bit) / 10(64bit)

Biostar reserves the right to add or remove support for any OS with or without notice.

Rear Panel Connectors

Note

• HDMI / VGA output requires an AMD family processor with integrated graphics.
• Since the audio chip supports High Definition Audio specifications, the function of each audio jack can be defined by software. The input/output function of each audio jack listed above represents the default setting. However, when connecting an external microphone to the audio port, please use the Line In (Blue) and Mic In (Pink) audio jack.
• Maximum resolution
  • VGA: 1920 x 1200 @60Hz
  • HDMI: 4096 x 2160 @24Hz or 3840 x 2160 @30Hz
• When using the front HD audio jack and plugging in the headset/microphone, the rear sound will be automatically Disabled.

Motherboard Layout

Hardware installation

Install Central Processing Unit (CPU)

• Step 1: Locate the CPU socket on the motherboard
• Step 2: Pull the socket locking out from the socket and then raise the lever up to a 90-degree angle.
• Step 3: Look for the white triangle on the socket, and the gold triangle on the CPU should point towards this white triangle. The CPU will fit only in the correct orientation.
• Step 4: Hold the CPU down firmly, and then close the lever to lock the position

Note
Please turn off the Power Supply before removing the CPU socket.

Install a Heatsink

TypeA

• Step 1: Place the heatsink and fan assembly onto the retention frame. Match the heatsink clip with the socket mounting lug. Hook the spring clip to the mounting lug.
• Step 2: On the other side, push the retention clip straight down to lock into the plastic lug on the retention frame, and then press down the locker until it stops.

TypeB

• Step 1: Remove the heatsink and fan assembly bracket on the motherboard and keep the cooler backplane under the motherboard.
• Step 2: Place the heatsink and fan assembly on top of the installed CPU and make sure that the fan cable is closest to the CPU fan connector. Please refer diagram to the following screw into the screw hole in the order shown.

Note

• Do not forget to connect the CPU fan connector.
• For proper installation, please kindly refer to the installation manual of your CPU heatsink.

Connect Cooling Fans
These fan headers support cooling fans built into the computer. The fan cable and connector may be different according to the fan manufacturer.

CPU_FAN1: CPU Fan Header

SYS_FAN1: System Fan Header

Note
CPU_FAN1, and 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 pin#1(GND).

Install System Memory

DDR4 Modules

• Step 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.
• Step 2: Insert the DIMM vertically and firmly into the slot until the retaining clips 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.

Memory Capacity

Dual Channel Memory Installation
Please refer to the following requirements to activate the Dual Channel function:

• Install memory modules of the same density in pairs, shown in the table.

(O means memory installed, and X means memory not installed.)

Note
When installing more than one memory module, we recommend using the same brand and capacity memory on this motherboard.

Expansion Slots

PEX16_1: PCI-Express Gen3 x16 Slot (When using APU, the bandwidth is x8 speed)

• PCI-Express 3.0 compliant.
• The theoretical maximum bandwidth using two slots simultaneously is 16GB/s for each slot, a total of 32GB/s.

PEX1_1/1_2: PCI-Express Gen2 x1 Slot

• PCI-Express 2.0 compliant.
• Data transfer bandwidth up to 0.5GB/s per direction; 1GB/s in total.

Install an Expansion Card
You can install your expansion card by following the steps:

• Read the related expansion card’s instruction document before installing the expansion card into the computer.
• Remove your computer’s chassis cover, screws, and slot bracket from the computer.
• Place a card in the expansion slot and press down on the card until it is completely seated in the slot.
• Secure the card’s metal bracket to the chassis back panel with a screw.
• Replace your computer’s chassis cover.
• Power on the computer, and if necessary, change BIOS settings for the expansion card.
• Install the related driver for the expansion card.

Jumper & Switch Setting
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 ”.

JCMOS1: Clear CMOS Jumper
The jumper allows users to restore the BIOS safe setting and the CMOS data. Please carefully follow the procedures to avoid damaging the motherboard .

Clear CMOS Procedures:

1. Remove the 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.

Headers & Connectors

ATXPWR1: ATX Power Source Connector
For better compatibility, we recommend using a standard ATX 24-pin power supply for this connector. Make sure to find the correct orientation before plugging in the connector.

ATXPWR2: ATX Power Source Connector
The connector provides +12V to the CPU power circuit.

Note

• Before you power on the system, please make sure that both ATXPWR1 and ATXPWR2 connectors have been plugged-in.
• Insufficient power supplied to the system may result in instability or the peripherals not functioning properly. The use of a PSU with a higher power output is recommended when configuring a system with more power-consuming devices.

PANEL1: Front Panel Header
This 16-pin header includes Power-on, Reset, HDD LED, Power LED, and speaker connection.

Speaker Connector

| 9| N/A| N/A
2| N/A| 10| N/A
3| N/A| 11| N/A| N/A
4| Speaker| 12| Power LED (+)| Power LED
5| HDD LED (+)| Hard drive

LED

| 13| Power LED (+)
6| HDD LED (-)| 14| Power LED (-)
7| Ground| Reset

button

| 15| Power button| Power-on

button

8| Reset control| 16| Ground

SATA1~SATA4: Serial ATA 6.0 Gb/s Connectors
These connectors connect to SATA hard disk drives via SATA cables.

JFRONT_USB3_1: Header for USB 3.1 Gen1 (5Gb/s) Ports at Front Panel
This header allows users to add additional USB ports on the PC front panel, and also can be connected with a wide range of external peripherals.

F_USB1/2: Header for USB 2.0 Ports at Front Panel
This header allows users to add additional USB ports on the PC front panel, and also can be connected with a wide range of external peripherals.

F_AUDIO1: Front Panel Audio Header
This header allows the user to connect the chassis-mount front panel audio I/O which supports HD and AC’97 audio standards.

Note

• 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.
• 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.

J_COM1: Serial Port Connector
The motherboard has a serial port header for connecting RS-232 Port.

Pin

|

Assignment

---|---
1| Carrier detect
2| Received data
3| Transmitted data
4| Data terminal ready
5| Signal ground
6| Data set ready
7| Request to send
8| Clear to send
9| Ring indicator
10| Key

UEFI BIOS & Software

UEFI BIOS Setup

• The BIOS Setup program can be used to view and change the BIOS settings for the computer. The BIOS Setup program is accessed by pressing the key after the Power-On Self-Test (POST) memory test begins and before the operating system boot begins.
• For further information of setting up the UEFI BIOS, please refer to the UEFI BIOS Manual on our website.

BIOS Update
The BIOS can be updated using either of the following utilities:

• BIOSTAR BIO-Flasher: Using this utility, the BIOS can be updated from a file on a hard disk, a USB drive (a flash drive or a USB hard drive), or a CD-ROM.
• BIOSTAR BIOS Update Utility: It enables automated updating while in the Windows environment. Using this utility, the BIOS can be updated from a file on a hard disk, a USB drive (a flash drive or a USB hard drive), or a CD-ROM, or from the file location on the Web.

BIOSTAR BIO-Flasher

Note

• This utility only allows storage devices with FAT32/16 format and single partition.
• Shutting down or resetting the system while updating the BIOS will lead to system boot failure.

Updating BIOS with BIOSTAR BIO-Flasher

1. Go to the website to download the latest BIOS file for the motherboard.
2. Then, copy and save the BIOS file into a USB flash (pen) drive.(Only supported FAT/FAT32 format)
3. Insert the USB pen drive that contains the BIOS file to the USB port.
4. Power on or reset the computer and then press during the POST process.
5. After entering the POST screen, the BIO-FLASHER utility pops out. Choose to search for the BIOS file.
6. Select the proper BIOS file, and a message asking if you are sure to flash the BIOS file. Click “Yes” to start updating BIOS.
7. A dialog pops out after BIOS flash is completed, asking you to restart the system. Press the key to restart system.
8. While the system boots up and the full-screen logo shows up, press the key to enter BIOS setup.

After entering the BIOS setup, please go to the <Save & Exit>, using the