How to Allocate more ram to Minecraft?

I'm trying to allocate 2GB of ram to Minecraft when the current default is 1GB. My system has 8GB so I know it is perfectly capable, but it keeps giving me the error message, "could not reserve enough space for this object heap". I even went to the start menu, "Sysdm.cpl", and changed the amount of allocated memory in the system, and it still can't "reserver enough space". How to I free up enough space for minecraft? Where is the other 7GB of ram allocated?

Minecraft doesn't have rams. You must be thinking about sheep and stuff. You could try breeding them using wheat. Thats the only way i know how.

There are a few websites that can help you with your issue:
1 - http://www.minecraftforum.net/...-minecraft

2 - http://www.wikihow.com/Allocate-More-RAM-to-Minecraft

3 -

4 - http://www.minecraftman.com/how-to-allocate-more-ram-minecraft/