Minecraft Forums

Hello and sorry to post this here i dont know where to put this and sorry for my english to..

Well i have a rare problem with minecraft 1.7.2, when i playing normal my world minning and moving around collecting resources i have so much lag when my invetory is full and the items are on the ground, also i notice when i cut a tree or pick stone o sand i have lag..

I dont know how to fix this and i dont wanna loose my world please someone can help me

I have 65 mobs installed and i have 8gb ram for that also have the last optifine ultra and put multi core and the lag is killing me please help

ok ok hwta kind of compuert do you have and you probally have to much mods

My computer is this

Procesador AMD FX4100 QuadCore 3.60

16 GB Ram

Windows 8.1

motherboard AMD 780G/780V/790GX

AMD Radeon HD 6670 (1024 MB)

What else do u need

What are your JVM arguments? Seems like you have too little ram allocated for that many mods...

Are you making sure Minecraft is running using your GTX graphics card? My modded one defaulted to the built-in card (Intel 3000 which is super slow), and i got terrible frame-rate. Then I switched it to my NVIDIA card and I get a smooth game!

how do i know whats my JVW arguments i put this in the launcher -Xmx8G -Xmn4G because i have 16gb

How do i switch to my NVIDIA because i put optifine ultra and then multi-core thats the only thing i do