I just built a new computer and have a old xp disk with sp1. I do all the updates. Then when it's time for Sp2, it installs then I restart and after the opening xp screen it goes to the blue screen with a stop code. Stop: 0x0000007e (0x0000005, 0x00000000, 0xbacc30bc, oxbacc2db8) I have no idea what this means. I can restore back to before sp2 and everything is okay. The only clue I have is some software is reading my 4GB of Ram as 3.4. Maybe a bad stick? I'm working on figuring out Memtest, and will try it. All my drivers/bios are updated. Someone please help me out.