Hi all, this is my first post and looking through other threads everyone appears to be way smarter than I am so please be gentle. I recently installed new RAM, a new video card(8800GT), and a new PSU(Antec 430W). After doing this I have been getting a stop error randomly. It has happened during game play and while browsing the internet, or opening the My Computer icon. It is very random. It is always the same stop error 0x00000050 and PAGE_FAULT_IN_NONPAGED_AREA. I'm not sure if it means anything, but the third set of numbers(Parameter 3) is always the same(0x80539313). I tried reinstalling the driver for the video card and I still get the error. I ran memtest86 and there were no errors after 20+ passes. I have read that bad memory can pass the memtest. Should I put the old memory back in? After getting the video card I noticed the minimum recommended PSU is 500W. Which I will be replacing, but I wouldn't think this would be causing this error since it is so random and does not only occur when I am loading the system. Am I wrong in thinking this? I am attaching some minidumps since I have noticed some people know how to interpret these. I would really appreciate if someone could help me out on this. Thank you!