This guide covers how to properly configure your server using the Server Starter Guide, ensuring you use the correct Java version and loader settings.
1. Java Version Requirements
Minecraft versions require specific Java environments to run. Using the incorrect version will result in a crash on startup.
| Minecraft Version | Required Java | Installation Guide |
|---|---|---|
| 1.20 and Higher | Java 21 | Install Guide |
| 1.17 – 1.20 | Java 17 | Install Guide |
| 1.16.5 and Lower | Java 8 | Install Guide |
2. Forge Servers (Standard)
For most modern Forge installations, RAM is managed through a specific arguments file.
- Locate the file named
user_jvm_args.txtin your main server directory. - Find the line containing
-Xmx4G. - Change the value to reflect your desired RAM.
- Example: Change
-Xmx4Gto-Xmx8Gto allocate 8GB.
- Example: Change
- Save the file and restart your server.
3. Fabric Servers
If you are using our Fabric server files, the configuration is handled via a YAML file.
- Open the file
server-setup-config.yaml. - Locate the line that reads
maxRam: 3G. - Change the number to your desired amount (e.g.,
maxRam: 8G). - Save the file and restart the server.
IMPORTANT
These steps apply only to self-hosted servers. If you are using a third-party hosting provider, you will generally need to upgrade your plan through their billing portal to increase RAM.

