4GB Fallout New Vegas
⚪ Last updated 2012⚠️ Install Order · 5 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
🔍 Analysis
- 👍 4.8% endorsement rate — high engagement, a strong quality signal
- 🏆 #18 of 57 Utilities mods in this game by downloads
📋 About This Mod
READ THIS FIRST
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This mod contains an executable which is designed to make changes to other programs. That\'s exactly what it is supposed to do, make changes in \"FalloutNV.exe\". But it may well get flagged by your anti-virus program as potentially dangerous. While it will be a false positive, If you are not comfortable using such a mod, please don\'t.
Fallout New Vegas 4GB
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by MonochromeWench (the.wench@wenchy.net)
FNV4GB is a tool to load Fallout New Vegas with the Large Address Aware executable flag set so the entire 4GB Virtual Memory Address Space can be used by the game. This is useful when using lots of mods.
This is a back port of Skyrim4GB that was originally based on older versions of FNV4GB. This version of FNV4GB has the same functionality as previously released Skyrim4GB. There are difference between this version of FNV4GB compared to older released versions of FNV4GB. Note the new command line reference below. This version of FNV4GB will, by default, write its modified executable to
This utility patches Fallout New Vegas to enable the Large Address Aware flag, allowing the game to use up to 4GB of RAM instead of the default 2GB. It's a must-have for modded setups that suffer from crashes due to memory limits. With nearly 48,000 endorsements, it's a proven fix.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Essential for modded playthroughs—stops those annoying out-of-memory crashes
- Community staple with nearly 48k endorsements, so you know it works
- One-and-done fix; no ongoing maintenance needed
⚠️ Cons
- Last updated in 2012—might not be officially updated for newer game patches, but the core fix remains relevant
- Only works if your OS and hardware support 4GB addressing (most do, but check)
- No detailed instructions included—you'll need to know how to apply the patch manually
For any Fallout New Vegas player who mods their game and hits memory crashes. Also for vanilla players who want a more stable experience. Skip if you're on a system with less than 4GB RAM or if you're not comfortable with simple file patching.
💡 Beginner Tips
- Make sure you run the patcher as administrator, or it might not apply correctly.
- After patching, verify the Large Address Aware flag is set by checking the game's executable properties or using a tool like CFF Explorer.
- If you use a mod manager like FOMM or Vortex, apply the patch after installing mods to ensure it sticks.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- MonochromeWench
- Version
- 1.6
- Downloads
- 992,875
- Endorsements
- 47,696
- Category
- Utilities
- Created
- 10/25/2010
- Updated
- 11/22/2012
🔧 How to Install New Vegas Mods
Download from Nexus.
📖 Full step-by-step install guide for New Vegas →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for New Vegas commands, item IDs, and more.
Keep browsing — more New Vegas mods await