I recently upgraded my dads piece, and decided to replace the mobo, vid card, and cpu with a A8N5X, AMD 64 3200+, and an nvidia 7600gs. I reused the PSU(350W), ram, HDD, and an optical drive. The problem arose when I went and plugged everything together. With just ram, vid card, cpu plugged in i can get past the splash screen and even enter bios and of course get the Boot Disk failure message. Now whenever I try to plug in the HDD the comp freezes on the mobo splash screen and I can't enter bios setup or anything. I tried plugging in a different HDD with the same result. This makes me think that the system is either underpowered or there is a problem with mobo and ide connections. I don't have another box I can test these theories with since i'm at my parents house atm, but anyone have any other suggestions or thoughts?