Been trying to fix my random crashes and sudden reboots for a while now (no BSOD) with no big luck, I think I have fixed causes of an USB crash I had and a non random nvidia driver crash (used drive cleaner then reinstalled the driver). I think it started with BSOD's and that made me stop using a chat application that ran many scripts (most of the crash dumps were pointing at it...) but that didn't really fix it. I have also tried many hardware test software such as memtest, burnintest (tested almost everything for long periods) and even formatted my primary hard drive to reinstall windows XP... but after a while the same kind of crashes started happening. It might also be the drivers I reinstalled but I am not really sure and since I made some hardware testing, it's hard for me to really say what thing is the real culprit. These last days I had two nvidia driver crashes (in 2 different dlls) and then tried driver cleaner, I have had no more news about it... yet? Well if it's my hardware, it might be related with memory, or even power source... (I have been reading other people BSOD causes talking about power). I know memtest is not reliable, but I have actually done like 12 passes (in 2 different moments) and the burintest program tested all my hardware at once for about 17 hours with no luck ;o, so I am really confused . I don't know if I should downclock my memory (it is set to auto, and the manufacturer site has a N/A link in my memory specs, whereas other models are correctly linked) and test stuff like that, or even install an older nvidia driver (I bought this computer recently and never had problems like this at start) . The crashes are mostly random, perhaps I am surfing on the internet, gaming, playing audio, working on some .doc file... Anyways, I will attach my 7 last memory dumps so you can check and maybe find some good advice to solve this issue. (I included the 2 nvidia recent crashes I have mentioned previously) Thanks in advance for your help. EDIT: I forgot to mention I have experienced Windows Freezing but I have no overheat/bad voltage problems since I run Intel Active monitor all the time and everything is always running like it should. Also uploaded an AIDA report (computer specs), my Windows is in spanish so some windows drivers are in spanish.