Hey all, This week i have build a system that is going to be my little brother's game pc, so he stops abusing mine This is what i have: 1 x DDRAM 512Mb PC3200 400MHz Asus a7n8x-x AMD Athlon XP 2800+ (S-A, 2,08GHz, 512KB, 333MHz FSB) Nvidia Geforce fx5700 Now these are my bios settings, which should be a stable configuration? : CPU external freq. 166 Mhz CPU freq multiplier auto System performance Optimal Memory freq. By SPD At first, it all seems to run fine, but when i start pumping some heavy programs (encoding, burning and so on...), at one point it just pops, like i'm pulling the plug :S Anyone knows where i have gone wrong (if i did do so in the first place!) Thanx a lot!