ASROCK DeskMini X300 Series User Manual

Version 1.0
Published July 2020
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”

ASROCK DeskMini X300 Series Specifications

General

Form Factor	Mini-STX
Chipset	AMD X300
Memory Slots	2 x SO-DIMM
Maximum Memory	64GB
Graphics Output	HDMI, DisplayPort
Audio	Realtek ALC233
CPU Support	AMD Ryzen 2000, 3000, 4000, 5000 Series APUs
Storage	2 x SATA3 6.0 Gb/s
USB Ports	1 x USB 3.2 Gen1 Type-C, 2 x USB 2.0
LAN	Realtek RTL8111H
Power Supply	120W Power Adapter

Summary

Motherboard Layout

2 x DDR4 SO-DIMM Slots (DDR4_A1, DDR4_B1)

Location and type of DDR4 SO-DIMM memory slots.

System Panel Header (PANEL1)

Header for power button, reset button, and status LEDs.

Front Panel

Rear Panel

Chapter 1 Introduction

1.1 Package Contents

List of items included in the motherboard package.

1.2 Specifications

Detailed technical specifications of the motherboard.

Chapter 2 Installation

Pre-installation Precautions

Important safety and handling guidelines before installation.

2.1 Installing the CPU

Step-by-step instructions for installing the CPU.

2.2 Installing the CPU Fan and Heatsink

Instructions for installing the CPU cooler and heatsink.

2.3 Installing Memory Modules (SO-DIMM)

Guide for installing DDR4 SO-DIMM memory modules.

2.4 Jumpers Setup

Explanation of jumper configurations and their functions.

Clear CMOS Jumper (CLRCMOS1)

2.5 Onboard Headers and Connectors

Description of various onboard headers and connectors.

System Panel Header (9-pin PANEL1)

Pin assignment and connection guide for the system panel header.

2.6 M.2 WiFi/BT Module Installation Guide

Instructions for installing an M.2 WiFi/BT module.

2.7 M.2_SSD (NGFF) Module Installation Guide

Instructions for installing an M.2 SSD module.