Java won't allow me enough ram to run!!!

[amazingbeans]

So, I recently reset my computer, so it has barely anything on it. I go to download the technic launcher and Java, so I could resume my YouTube series playing attack of the B-Team. I had issues before with it not allowing enough ram to run this modpack, but I went into my Launcher Options>>Java Settings>>Memory and set it to give 4 gb of Ram to the Technic Launcher. I forgot to do this when I tried to start, so I just went back to the Memory dropdown menu, but the most ram Java will allow it is 1gb!!! This is nowhere near enough ram!! I tried downloading other Java versions, and tried everything I could so that I could try to fix it, but nothing will work. PLEASE can someone help me with this!?!?

[Valkon]

Make sure you have 64-bit Java and not 32-bit.