4GB Fallout New Vegas

newvegas — Mods & Enhancements

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.

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Downloads, ratings, compatibility info, installation guides, and user reviews.

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Syntax

Utilities

Example

Downloads: 992,875

💡 Notes

By MonochromeWench

🎯 Tips & Tricks

Make sure you run the patcher as administrator, or it might

Make sure you run the patcher as administrator, or it might not apply correctly.

After patching, verify the Large Address Aware flag is set b

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 patc

If you use a mod manager like FOMM or Vortex, apply the patch after installing mods to ensure it sticks.

🔧 Troubleshooting

Mod conflicts

Check load order. Disable conflicting mods one by one.

⚠️ Common Mistakes

  • Installing without checking requirements

👍 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
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