
Ferrum Modpack
A server-side only modpack for optimizations! (If you haven't noticed, made by Lartum).
Screenshots

About this Modpack
Ferrum Modpack
The Ferrum Modpack (FeM) is a server-side only modpack. Its objective is to optimize server performance as much as possible.
The mods in the modpack and the reasons they're in are:
- Alternate current
(Redstone optimizations) - Concurrent Chunk Management Engine
(Improves performance in chunk generation) - FerriteCore
(Memory usage optimizations) - Lithium
(General-purpose optimizations) - ModernFix
(AIO performance improvement) - Noisium
(Optimises world generation performance)
FAQ
This is where you'll find the frequently asked questions. Because of how new this modpack is, there aren't any. Come back in a while!
Available Versions
How to Set Up a Ferrum Modpack Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Ferrum Modpack). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Ferrum Modpack" and click "Install". The fabric loader and Minecraft 1.21.1 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
Ferrum Modpack server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a Ferrum Modpack server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).
Can I add custom mods to Ferrum Modpack without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.1). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
Ferrum Modpack server lagging – performance tips
1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
Similar Modpacks
Rent Ferrum Modpack Server
Start your own server with automatic modpack installation.
Supported Versions
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From €8.00/month with 6 GB RAM for the best performance.
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