I have a emachine w3503 intel celeron and I plan on putting a GeForce GTX graphics card in and a 500 watt power supply to handle it. My computer says it can have up to a Maximum Memory of 2GB of RAM with 2 sockets(I only have half a GB at the moment). Does that mean I can only put one stick of 1GB RAM in each slot, or 2GB of RAM in each slot? My main question is, my computer has a 64 bit processor but my computer can only have 2 BG of RAM if I am correct. So I have read suff online that said "your computer can process things faster if you put a 32 bit OS with a computer with less than 4GB of RAM." But a 64 bit Windows 7 only requires me to have 2 GB of RAM. Note that I use this computer for gaming and would like to know what bit of OS I should use. Please help 
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