GIGABYTE A520M S2H Motherboard User Manual

A520M S2H
User’s Manual
Rev. 1301

A520M S2H Motherboard

GIGABYTE will reduce paper use in order to fulfill the responsibilities of a global citizen.
Also, to reduce the impacts on global warming, the packaging materials of this product are recyclable and reusable. GIGABYTE works with you to protect the environment.
For more product details, please visit GIGABYTE’s website.
Copyright
© 2023 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specifications and features in this manual may be made by GIGABYTE without prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or published in any form or by any means without GIGABYTE’s prior written permission.

• For detailed product information, carefully read the User’s Manual.
• For quick set-up of the product, refer to the Quick Installation Guide on GIGABYTE’s website. https://download.gigabyte.com/FileList/Manual/mb_manual_installation-guide_103.pdf?m=sw

For product-related information, check on our website at: https://www.gigabyte.com
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: “REV: X.X.” For example, “REV: 1.0” means the revision of the motherboard is 1.0. Check your motherboard revision before updating motherboard BIOS, drivers, or when looking for technical information.

Example:

Product Introduction

1-1 Motherboard Layout

Hardware Installation

2-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can become damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read the user’s manual and follow these procedures:

• Prior to installation, make sure the chassis is suitable for the motherboard.
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before installing or removing the motherboard or other hardware components.
• When connecting hardware components to the internal connectors on the motherboard, make sure they are connected tightly and securely.
• When handling the motherboard, avoid touching any metal leads or connectors.
• It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic components such as a motherboard, CPU or memory. If you do not have an ESD wrist strap, keep your hands dry and first touch a metal object to eliminate static electricity.
• Prior to installing the motherboard, please have it on top of an antistatic pad or within an electrostatic shielding container.
• Before connecting or unplugging the power supply cable from the motherboard, make sure the power supply has been turned off.
• Before turning on the power, make sure the power supply voltage has been set according to the local voltage standard.
• Before using the product, please verify that all cables and power connectors of your hardware components are connected.
• To prevent damage to the motherboard, do not allow screws to come in contact with the motherboard circuit or its components.
• Make sure there are no leftover screws or metal components placed on the motherboard or within the computer casing.
• Do not place the computer system on an uneven surface.
• Do not place the computer system in a high-temperature or wet environment.
• Turning on the computer power during the installation process can lead to damage to system components as well as physical harm to the user.
• If you are uncertain about any installation steps or have a problem related to the use of the product, please consult a certified computer technician.
• If you use an adapter, extension power cable, or power strip, ensure to consult with its installation and/or grounding instructions.

2-2 Product Specifications

CPU| AMD Socket AM4, support for: AMD Ryzen ™  5000 G-Series Processors/ AMD Ryzen ™
5000 Series Processors/ AMD Ryzen ™
4000 G-Series Processors/ AMD Ryzen ™
3000 G-Series Processors/ AMD Ryzen ™  3000 Series Processors
(Go to GIGABYTE’s website for the latest CPU support list.)
---|---
Chipset| AMD A520
Memory| 2 x DDR4 DIMM sockets supporting up to 64 GB (32 GB single DIMM capacity) of system memory
Support for DDR4 3200/2933/2667/2400/2133 MT/s memory modules
Dual channel memory architecture
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules
(Go to GIGABYTE’s website for the latest supported memory speeds and memory modules.)
Onboard Graphics| Integrated Graphics Processor with AMD Radeon ™  Graphics support:
– 1 x D-Sub port, supporting a maximum resolution of 1920×1200@60 Hz
– 1 x DVI-D port, supporting a maximum resolution of 1920×1200@60 Hz

• The DVI-D port does not support D-Sub connection by adapter.
  – 1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz

• Support for HDMI 2.1 version, HDCP 2.3, and HDR.
  Support for up to 3 displays at the same time Maximum shared memory of 16 GB
  Audio| Realtek ®  audio CODEC High Definition Audio 2/4/5.1/7.1-channel
    You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings..
  LAN| Realtek GbE LAN chip (1 Gbps/100 Mbps/10 Mbps)
  Expansion Slots| CPU: –  1 x PCI Express x16 slot, supporting PCIe 3.0 and running at
  Chipset: – 2 x PCI Express x1 slots, supporting PCIe 3.0
  Storage Interface| CPU: –  1 x M.2 connector (Socket 3, M key, type 2242/2260/2280 SATA and PCIe 3.0 x4/x2 SSD support)
  Chipset: – 4 x SATA 6Gb/s connectors
  – Support for RAID 0, RAID 1, and RAID 10
  USB| CPU: – 4 x USB 3.2 Gen 1 ports on the back panel
  Chipset: – 2 x USB 3.2 Gen 1 ports available through the internal USB header – 6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers)
  Internal Connectors| 1 x 24-pin ATX main power connector
  1 x 8-pin ATX 12V power connector
  1 x CPU fan header
  2 x system fan headers
  1 x addressable LED strip header
  1 x RGB LED strip header
  1 x M.2 Socket 3 connector
  4 x SATA 6Gb/s connectors
  1 x front panel header
  1 x front panel audio header
  1 x USB 3.2 Gen 1 header
  2 x USB 2.0/1.1 headers
  1 x Trusted Platform Module (TPM) header (2×6 pin, for the GC-TPM2.0_S module only)
  1 x serial port header
  1 x speaker header
  1 x chassis intrusion header
  1 x Clear CMOS jumper
  Back Panel Connectors| 1 x PS/2 keyboard/mouse port
  1 x D-Sub port
  1 x DVI-D port
  1 x HDMI port
  4 x USB 3.2 Gen 1 ports
  2 x USB 2.0/1.1 ports
  1 x RJ-45 port
  1 x Q-Flash Plus button
  3 x audio jacks
  I/O Controller| iTE ®  I/O Controller Chip
  Hardware Monitor| Voltage detection
  Temperature detection
  Fan speed detection
  Overheating warning
  Fan fail warning
  Fan speed control
    Whether the fan speed control function is supported will depend on the fan you install.
  BIOS| 1 x 128 Mbit flash
  Use of licensed AMI UEFI BIOS
  PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
  Unique Features| Support for APP Center

• Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.
  – @BIOS
  – EasyTune
  – RGB Fusion
  – Smart Backup
  – System Information Viewer
  Support for Q-Flash Plus
  Support for Q-Flash
  Bundled Software| Norton ®
  Internet Security (OEM version)
  LAN bandwidth management software
  Operating System| Support for Windows 11 64-bit
  Support for Windows 10 64-bit
  Form Factor| Micro ATX Form Factor; 24.4cm x 20.5cm

• GIGABYTE reserves the right to make any changes to the product specifications and product-related information without prior notice.

2-3 Installing the CPU
Read the following guidelines before you begin to install the CPU:

• Make sure that the motherboard supports the CPU. (Go to GIGABYTE’s website for the latest CPU support list.)
• Always turn off the computer and unplug the power cord from the power outlet before installing the CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly.
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and damage of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specifications. It is not recommended that the system bus frequency be set beyond hardware specifications since it does not meet the standard requirements for the peripherals. If you wish to set the frequency beyond the standard specifications, please do so according to your hardware specifications including the CPU, graphics card, memory, hard drive, etc.

Installing the CPU
Completely lift up the CPU socket locking lever. Locate the pin one (denoted by a small triangle) of the CPU socket and the CPU. Once the CPU is positioned into its socket, place one finger down on the middle of the CPU, lowering the locking lever and latching it into the fully locked position.

Do not force the CPU into the CPU socket before the CPU socket locking lever is lifted up, or damage to the CPU and CPU socket may occur.
2-4 Installing the Memory
Read the following guidelines before you begin to install the memory:

• Make sure that the motherboard supports the memory. It is recommended that memory of the same capacity, brand, speed, and chips be used. (Go to GIGABYTE’s website for the latest supported memory speeds and memory modules.)
• Always turn off the computer and unplug the power cord from the power outlet before installing the memory to prevent hardware damage.
• Memory modules have a foolproof design. A memory module can be installed in only one direction.
  If you are unable to insert the memory, switch the direction.

Dual Channel Memory Configuration
This motherboard provides two memory sockets and supports Dual Channel Technology. After the memory is installed, the BIOS will automatically detect the specifications and capacity of the memory. Enabling Dual Channel memory mode will double the original memory bandwidth.
The two memory sockets are divided into two channels and each channel has one memory socket as following:
Channel A: DDR4_A1
Channel B: DDR4_B1

Due to CPU limitations, read the following guidelines before installing the memory in Dual Channel mode.

1. Dual Channel mode cannot be enabled if only one memory module is installed.
2. When enabling Dual Channel mode with two memory modules, it is recommended that memory of the same capacity, brand, speed, and chips be used.

2-5 Installing an Expansion Card
Read the following guidelines before you begin to install an expansion card:

• Make sure the motherboard supports the expansion card. Carefully read the manual that came with your expansion card.
• Always turn off the computer and unplug the power cord from the power outlet before installing an expansion card to prevent hardware damage.

2-6 Back Panel Connectors

a USB 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices.
b PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or keyboard.
c D-Sub Port
(Note 1)
The D-Sub port supports a 15-pin D-Sub connector and supports a maximum resolution of 1920×1200@60 Hz (the actual resolutions supported depend on the monitor being used). Connect a monitor that supports D-Sub connection to this port.
d DVI-D Port
(Note 1)(Note 2)
The DVI-D port conforms to the DVI-D specification and supports a maximum resolution of 1920×1200@60 Hz (the actual resolutions supported depend on the monitor being used). Connect a monitor that supports DVI-D connection to this port.
e HDMI Port (Note 1)
The HDMI port is HDCP 2.3 compliant and supports Dolby TrueHD and DTS HD Master Audio formats. It also supports up to 192KHz/24bit 7.1-channel LPCM audio output.
You can use this port to connect your HDMI-supported monitor. The maximum supported resolution is 4096×2160@60 Hz, but the actual resolutions supported are dependent on the monitor being used.

• To set up a triple-display configuration, you must install motherboard drivers in the operating system first.
• After installing the HDMI device, make sure to set the default sound playback device to HDMI. (The item name may differ depending on your operating system.)

Triple-Display Configurations for the Onboard Graphics:
Triple-display configurations are supported after you install motherboard drivers in OS. Only single display is available during the BIOS Setup or POST process.

• When removing the cable connected to a back panel connector, first remove the cable from your device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side to prevent an electrical short inside the cable connector.

f USB 3.2 Gen 1 Port
The USB 3.2 Gen 1 port supports the USB 3.2 Gen 1 specification and is compatible to the USB 2.0 specification. Use this port for USB devices.
g USB 3.2 Gen 1 Port (Q-Flash Plus Port)
The USB port supports the USB 3.2 Gen 1 specification. Use this port for USB devices. Before using Q-Flash Plus
(Note 3) , make sure to insert the USB flash drive into this port first.
h Q-Flash Plus Button
(Note 3)
Q-Flash Plus allows you to update the BIOS when your system is off (S5 shutdown state). Save the latest BIOS on a USB thumb drive and plug it into the Q-Flash Plus port, and then you can now flash the BIOS automatically by simply pressing the Q-Flash Plus button. The QFLED will flash when the BIOS matching and flashing activities start and will stop flashing when the main BIOS flashing is complete.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following describes the states of the LAN port LEDs.

Speed LED:

Activity LED:

j Line In/Rear Speaker Out (Blue)
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
k Line Out/Front Speaker Out (Green)
The line out jack.
l Mic In/Center/Subwoofer Speaker Out (Pink)
The Mic in jack.
Audio Jack Configurations:

Jack| Headphone/ 2-channel| 4-channel| 5.1-channel| 7.1-channel
---|---|---|---|---
Line In/Rear Speaker Out| | | |
Line Out/Front Speaker Out| | | |
Mic In/Center/Subwoofer
Speaker Out| | | |
Front Panel Line Out/Side
Speaker Out| | | |

You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.
Please visit GIGABYTE’s website for details on configuring the audio software.
https://www.gigabyte.com/WebPage/697/realtek897-audio.html

(Note 1) For AMD Ryzen ™ 5000 G-Series/4000 G-Series/3000 G-Series Processors only.
(Note 2) The DVI-D port does not support D-Sub connection by adapter.
(Note 3) To enable the Q-Flash Plus function please visit the “Unique Features” webpage of GIGABYTE’s website.

2-7 Internal Connectors

1. ATX_12V	10) F_ AUDIO

2. ATX| 11) F_U32
3. CPU_FAN| 12) F_USB1/F_USB2
4. SYS_FAN1/2| 13) TPM
5. D_LED1| 14) COM
6. LED_C| 15) SPEAKER
7. SATA3 0/1/2/3| 16) CI
8. M2A_CPU| 17) CLR_CMOS
9. F_ PANEL| 18) BAT

Read the following guidelines before connecting external devices:

• First make sure your devices are compliant with the connectors you wish to connect.
• Before installing the devices, be sure to turn off the devices and your computer. Unplug the power cord from the power outlet to prevent damage to the devices.
• After installing the device and before turning on the computer, make sure the device cable has been securely attached to the connector on the motherboard.

1/2) ATX_12V/ATX (2×4 12V Power Connector and 2×12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, first make sure the power supply is turned off and all devices are properly installed. The power connector possesses a foolproof design. Connect the power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected, the computer will not start.
To meet expansion requirements, it is recommended that a power supply that can withstand high power consumption be used (500W or greater). If a power supply is used that does not provide the required power, the result can lead to an unstable or unbootable system.

ATX:

3/4) CPU_FAN/SYS_FAN1/2 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.

• Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers.

D_LED1 (Addressable LED Strip Header)
The header can be used to connect a standard 5050 addressable LED strip, with maximum power rating of 5A (5V) and maximum number of 1000 LEDs.

Connect your addressable LED strip to the header. The power pin (marked with a triangle on the plug) of the LED strip must be connected to Pin 1 of the addressable LED strip header. Incorrect connection may lead to the damage of the LED strip.

LED_C (RGB LED Strip Header)
The header can be used to connect a standard 5050 RGB LED strip (12V/G/R/B), with maximum power rating of 2A (12V) and maximum length of 2m.

Connect your RGB LED strip to the header. The power pin (marked with a triangle on the plug) of the LED strip must be connected to Pin 1 (12V) of this header. Incorrect connection may lead to the damage of the LED strip.
For how to turn on/off the lights of the LED strip please visit the “Unique Features” webpage of GIGABYTE’s website.
Before installing or removing the devices, be sure to turn off the devices and your computer. Unplug the power cord from the power outlet to prevent damage to the devices.

SATA3 0/1/2/3 (SATA 6Gb/s Connectors)

The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA 1.5Gb/s standard. Each SATA connector supports a single SATA device. The SATA connectors support RAID 0, RAID 1, and RAID 10. Please navigate to the “Configuring a RAID Set” page of GIGABYTE’s website for instructions on configuring a RAID array.

M2A_CPU (M.2 Socket 3 Connector)

The M.2 connector supports M.2 SATA SSDs or M.2 PCIe SSDs and support RAID configuration. Please note that an M.2 PCIe SSD cannot be used to create a RAID set with a SATA hard drive. Please navigate to the “Configuring a RAID Set” page of GIGABYTE’s website for instructions on configuring a RAID array.

Follow the steps below to correctly install an M.2 SSD in the M.2 connector.
Step 1:
Use a screw driver to unfasten the screw and standoff from the motherboard. Locate the proper mounting hole for the M.2 SSD to be installed and then screw the standoff first.
Step 2:
Slide the M.2 SSD into the connector at an angle.
Step 3:
Press the M.2 SSD down and then secure it with the screw.
Select the proper hole for the M.2 SSD to be installed and refasten the screw and standoff.

F_PANEL (Front Panel Header)
Connect the power switch, reset switch, and system status indicator on the chassis to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables.

• PLED (Power LED):
  System| LED
  ---|---
  Status S0| On
  S3/S4/S5| Off

Connects to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED is off when the system is in S3/S4 sleep state or powered off (S5).

• PW (Power Switch):
  Connects to the power switch on the chassis front panel. You may configure the way to turn off your system using the power switch (please navigate to the “BIOS Setup” page of GIGABYTE’s website and search for “Settings\ Platform Power” for more information).

• HD (Hard Drive Activity LED):
  Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data.

• RES (Reset Switch):
  Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer if the computer freezes and fails to perform a normal restart.

• NC: No connection.

The front panel design may differ by chassis. A front panel module mainly consists of power switch, reset switch, power LED, hard drive activity LED and etc. When connecting your chassis front panel module to this header, make sure the wire assignments and the pin assignments are matched correctly.
F_AUDIO (Front Panel Audio Header)
The front panel audio header supports High Definition audio (HD). You may connect your chassis front panel audio module to this header. Make sure the wire assignments of the module connector match the pin assignments of the motherboard header. Incorrect connection between the module connector and the motherboard header will make the device unable to work or even damage it.

Some chassis provide a front panel audio module that has separated connectors on each wire instead of a single plug. For information about connecting the front panel audio module that has different wire assignments, please contact the chassis manufacturer.
F_U32 (USB 3.2 Gen 1 Header)
The header conforms to USB 3.2 Gen 1 and USB 2.0 specification and can provide two USB ports. For purchasing the optional 3.5″ front panel that provides two USB 3.2 Gen 1 ports, please contact the local dealer.

Pin No.| Definition| Pin No.| Definition| Pin No.|

Definition

---|---|---|---|---|---
1| VBUS| 8| D1-| 15| SSTX2-
2| SSRX1-| 9| D1+| 16| GND
3| SSRX1+| 10| NC| 17| SSRX2+
4| GND| 11| D2+| 18| SSRX2-
5| SSTX1-| 12| D2-| 19| VBUS
6| SSTX1+| 13| GND| 20| No Pin
7| GND| 14| SSTX2+| |

F_USB1/F_USB2 (USB 2.0/1.1 Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.

Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power outlet to prevent damage to the USB bracket.

TPM (Trusted Platform Module Header)

You may connect a TPM (Trusted Platform Module) to this header.

COM (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional COM port cable, please contact the local dealer.

SPEAKER (Speaker Header)
Connects to the speaker on the chassis front panel. The system reports system startup status by issuing a beep code. One single short beep will be heard if no problem is detected at system startup.

CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been removed. This function requires a chassis with chassis intrusion detection design.

CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS configuration and reset the CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.

| Open: Normal
---|---
| Short: Clear CMOS Values

• Always turn off your computer before clearing the CMOS values.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually configure the BIOS settings (please navigate to the “BIOS Setup” page of GIGABYTE’s website for more information).

BAT (Battery)

The battery provides power to keep the values (such as BIOS configurations, date, and time information) in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low level, or the CMOS values may not be accurate or may be lost.

You may clear the CMOS values by removing the battery:

1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute. (Or use a metal object like a screwdriver to touch the positive and negative terminals of the battery holder, making them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
   • Always turn off your computer and unplug the power cord before replacing the battery.
   • Replace the battery with an equivalent one. Damage to your devices may occur if the battery is replaced with an incorrect model.
   • Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain about the battery model.
   • When installing the battery, note the orientation of the positive side (+) and the negative side (-) of the battery (the positive side should face up).
   • Used batteries must be handled in accordance with local environmental regulations.

BIOS Setup

BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the motherboard. Its major functions include conducting the Power-On Self-Test (POST) during system startup, saving system parameters and loading operating system, etc. BIOS includes a BIOS Setup program that allows the user to modify basic system configuration settings or to activate certain system features. When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to keep the configuration values in the CMOS.
To access the BIOS Setup program, press the key during the POST when the power is turned on.

• To upgrade the BIOS, use either the GIGABYTE Q-Flash or @BIOS utility.

• Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the operating system.

• @BIOS is a Windows-based utility that searches and downloads the latest version of BIOS from the Internet and updates the BIOS.
  For instructions on using the Q-Flash and @BIOS utilities, please navigate to the “Unique Features” page of GIGABYTE’s website and search for “BIOS Update Utilities.”

• Because BIOS flashing is potentially risky, if you do not encounter problems using the current version of BIOS, it is recommended that you not flash the BIOS. To flash the BIOS, do it with caution. Inadequate BIOS flashing may result in system malfunction.

• It is recommended that you not alter the default settings (unless you need to) to prevent system instability or other unexpected results. Inadequately altering the settings may result in system’s failure to boot. If this occurs, try to clear the CMOS values and reset the board to default values.

• Refer to the introductions of the battery/clear CMOS jumper in Chapter 2 or navigate to the “BIOS Setup” page of GIGABYTE’s website and search for “Load Optimized Defaults” for how to clear the CMOS values.

Startup Screen:
The following startup Logo screen will appear when the computer boots.

Function Keys:
< DEL>: BIOS SETUP\Q-FLASH
Press the key to enter BIOS Setup or to access the Q-Flash utility in BIOS Setup.
< F12>: BOOT MENU
Boot Menu allows you to set the first boot device without entering BIOS Setup. In Boot Menu, use the up arrow key or the down arrow key to select the first boot device, then press to accept.
The system will boot from the device immediately.
Note: The setting in Boot Menu is effective for one time only. After system restart, the device boot order will still be based on BIOS Setup settings.
< END>: Q-FLASH
Press the key to access the Q-Flash utility directly without having to enter BIOS Setup first.