[solved!] Help request: mystery bsod This is a humble plea for assistance. Since I reformatted and installed xp sp3 (after replacing a faulty psu), I have experienced periodic bsod's, an average of 1-2 a day. They occur at seemingly arbitrary points and are I've had no success in replicating any of them. I noticed that they occur a lot when I have multiple system-hog programs open. However, I tried to replicate this by opening every program I had and it ran fine. Last week, I experienced maybe 1 bsod and within the last 2 days, they've become much more frequent. I havn't installed any new software/hardware. I've been logging every stop code experienced: 7A, 50, 0A, and (most common) 8E & 7F. At this point, I'm leaning towards faulty ram as the cause. However, I ran (each separately overnight) memtest, memtest86+, and prime95. All of which detected no errors! I read the faq and did all that it asked: inspected/cleaned dust, monitored system temp, reset page files. I don't know what else to do at this point, besides seek the wisdom of those who know more than I do. Specs: Abit IC7-G P4 3.0ghz 2gb pc3200 ddr400 ram (2x 512 kingston valueram and 1x crucial 1gb) bfg geforce 7300gt 512 agp antec earthwatts 430w psu XP SP3 Attached are my last 5 minidumps. Please let me know if more information would be of help!