Brewology

I bought Gears of War on PC and I exceed all the system requirments except for the 1G of RAM (It needs 1G of RAM to play and I have 1G). But quite often the game closes and I get a message saying "Gears of war has encountered a error and has to close. Sorry for the inconvenience." I was wondering if anyone knew why this is happening, I was thinking that i'm overclocking my computer and it closes GoW to prevent damage or something like that.
Any help would be nice, thanks.

My guess wouldnt be the RAM (mainly that is) but more to do with your graphics card being close to just meeting.