Windows .exe Can't play MC FTB unless i put less then 1gb of ram

[Draqst]

Hello. Im rather new to playing minecraft with mods and been using direwolf20's modpack. I realy ejoy it and gives a nice new feeling to the game. I had to upgrade my java to 64bit to be able to have enough Ram to be able to play the FTB modpack. not a big problem.
Here is my problem though.
After playing with the modpack from direwolf20 for a month ish. To day everytime i was trying to open the FTB launcher it would crash nearly instantly and a message would pop up saying java(tm) platform se binary has stopped working. even says that when trying to open vanilla launcher. i uninstalled java and reinstalled 32bit and now i can open the launcher. when i press launch it starts loading and after a while the launcher just shutsdown. if i put the Ram usage below 700mb it will load and i can enter singleplayer.. but with the result of lots of lag and is unplayable.
Ive got the log from when the launcher closes it self and looks like this http://pastebin.com/CDrKXZ35.
Sorry for the bad spelling but english is not my native language
Hope someone can help me with this problem. id realy like to try out the new direwolf20 pack

 

[lavarthan]

The 32bit version is your problem. 32bit version will only allow you to allocate no more than 1GB. You need the 64bit version to do that.

# C [nvoglv32.DLL+0xc0580e]

Edit: As for the error I suggest reinstalling Java and updating your drivers. These errors are fixed either by updating drivers or reinstalling Java or both.

 

[Draqst]

yes i know that is why i had to install java 64bit in the first place. i will try to upgrade my drivers though dident think of that. il get back with what happens

 

[Draqst]

allright. so it seems like updating my gfx driver did it for me.. Thx for you're help Lavarthan