# Minecraft Modpack Server Won't Start – CurseForge, RAM & Java

Minecraft modpack server won't start? ATM, RLCraft, All the Mods – RAM, Java 17, Forge/NeoForge version, mod conflicts – modpack troubleshooting.

**Quick answer:** Modpack won't start: **increase RAM** (8–16 GB), **Java 17**, **exact same Forge/NeoForge version** as pack and read `logs/latest.log` + `crash-reports/`.

**If you landed here:** ATM, RLCraft, FTB or All the Mods crashes on mod loading, OutOfMemoryError or "Mod X requires Y".

## Related

- [Forge won't start](/en/gameserver/minecraft/forge-server-startet-nicht)
- [Minecraft performance](/en/gameserver/minecraft/improve-performance)
- [Slots vs CPU & RAM](/en/gameserver/slots-vs-cpu-ram)
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