Random BSOD's when playing games

Hello, When I use my computer for games, surfing the net, etc. I usually get bsod's. The most common bsod's I get are driver_irql_not_less_or_equal and system_service_exception. I've updated my drivers for my chipset and graphics card. From analysing the minidumps, I've found that my memory is probably corrupt. But I don't wanna screw my computer up by playing around with the hardware. I'm...