my PC: mobo: kt3 ultra cpu: Athlon 1.15GHz GPU: Radeon 8500 ram: 1.24 gig My pc is roughly 4 years old and i have not had any problems out of it untill now. I recently upgraded my ram from 512 to 1.24g (1 512 chip) and windows is showing that i indeed have 1gig of ram. I have had 1 gig of ram in my pc before, but i removed and sold one of the chips awhile ago. The problem is when i play a game (world of warcraft) a software called PC alert 3 (system monitor) sets off a alarm ever so often when my voltage (3.3v) is either going over (3.63v) or under(2.97v). All other voltage are staying well with in safe parameters. My pc does not crash or have any problems other then the system monitor setting off an alarm. What could be going wrong? or is it nothing to worry about?