FermiumASM Mod is a fork of NormalASM Mod. FermiumASM makes multiple improvements, optimizations, and bug fixes to Minecraft.
Features:
- Optimizing RAM usage, especially in larger packs.
- Fixing multiple crashes, in Minecraft, Forge, and some other mods.
- Multiple performance improvements.
- Refactored and modified to use and depend on FermiumBooter, an MIT alternative to mixin loading, replacing its dependency on MixinBooter.
- Modified to remove internal dependency on MixinExtras.
- Removes internal Spark profiling as it is both incompatible with, and superseded by, the updated fork Spark Unforged, allowing for better profiling.
- Removes the chance to pick a random author to blame in a crash report.
Requires:
Minecraft Forge
Fermium Booter Mod
FermiumASM Mod Download Links
For Minecraft 1.12.2
Forge version: Download from Server 1 – Download from Server 2
Quick facts
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Downloads as 202792.mcaddon
- Download size: 498 KB
- Download link checked 23 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.