User's Manual
Table Of Contents
Table of Contents
Chapter 1: Before You Start
Package Contents 3
Synology DS1821+ at a Glance
4
System Modes and LED Indicators
5
Other LED Indicators
7
Hardware Speciîš¿cation
8
Spare Parts
9
Optional Accessories
9
Safety Instructions
10
Chapter 2: Hardware Setup
Tools and Parts for Component Installation 11
Install Drives
11
Start Up Your Synology NAS
13
Add a Memory Module to Synology NAS
14
Add an M.2 NVMe SSD to Synology NAS
16
Add a Network Interface Card
17
Chapter 3: System Maintenance
Replace System Fan 18
Chapter 4: Install DSM on Synology NAS
Install DSM with Web Assistant 21
Learn More
21
2
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