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Asus Prime X399-A User Manual

Asus Prime X399-A
96 pages
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Motherboard
PRIME
X399-A

Table of Contents

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Asus Prime X399-A Specifications

General IconGeneral
SocketTR4
ChipsetAMD X399
Form FactorATX
Memory Slots8
Maximum Memory128GB
Memory TypeDDR4
PCIe 2.0 x16 Slots0
PCIe 2.0 x1 Slots1
U.2 Ports1
USB 3.1 Gen 2 Type-A Ports2
USB 3.1 Gen 2 Type-C Ports1
USB 2.0 Ports4
RAID SupportRAID 0, 1, 10
Memory Speed2666MHz
NetworkIntel I211-AT Gigabit LAN
AudioRealtek ALC1220A 8-Channel
Storage8 x SATA 6Gb/s

Summary

Chapter 1: Product Introduction

Motherboard Overview

Provides an overview of the motherboard's layout and main components.

CPU Socket and Installation

Details on the SocketTR4 CPU socket and safe CPU installation.

System Memory Installation

Guide to installing DDR4 DIMM modules into the motherboard slots.

Expansion Slots

Information on PCIe slots, their types, and configurations.

Jumpers, Buttons, and LEDs

Explains the function of motherboard jumpers, buttons, and diagnostic LEDs.

Internal Connectors

Details about various internal connectors for peripherals and headers.

Chapter 2: Basic Installation

Building Your PC System

Step-by-step guide for installing motherboard and components into the PC chassis.

BIOS Update Utility

Instructions on updating the BIOS using USB BIOS Flashback.

Rear and Audio Connections

Guide to connecting rear I/O ports and audio devices to the motherboard.

First Time Startup

Procedures for powering on the system for the first time and POST checks.

Turning Off the Computer

Proper methods for shutting down the computer system.

Chapter 3: BIOS Setup

Knowing BIOS

Introduction to the ASUS UEFI BIOS and its interface.

BIOS Setup Program Navigation

How to enter and navigate the BIOS setup menus.

EZ Mode

Overview of the simplified BIOS mode for basic system information and settings.

Advanced Mode

Detailed configuration options available in the advanced BIOS mode.

My Favorites

How to customize the BIOS by saving frequently used settings.

Main Menu

Explains the main BIOS menu and its sections for system configuration.

Ai Tweaker Menu

Settings for overclocking, performance tuning, and CPU/DRAM adjustments.

Advanced Menu

Configuration options for CPU, system devices, and onboard controllers.

Boot Menu

Options to control system boot order and security settings.

Tool Menu

Access to utilities for BIOS update, secure erase, and system information.

Exit Menu

Options for saving, discarding changes, and exiting the BIOS setup.

Updating BIOS

Instructions and utilities for updating the motherboard BIOS.

Chapter 4: RAID Support

AMD RAID Array Configurations

Detailed explanation of RAID 0, RAID 1, and RAID 10 array configurations.

Creating a RAID Driver Disk

Steps to create a RAID driver disk for Windows OS installation.

Appendix

Notices and Compliance

Regulatory notices, FCC compliance, and safety statements.

ASUS Contact Information

Provides contact details for ASUS technical support and services.

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