I am running a Dell 8400, Windows XP Home SP3. I recently had to format my HD, and due to the computer being a few years old I lost all the discs that came along with the computer. Upon acquiring a disc, I proceeded to install windows, and get my drivers one by one. Well now I seem to have a problem playing video. If I run Windows Media Player, or Media player classic to watch a video. Whether it be a AVI, MPEG or anything, I get a immediate BSOD. Or if I am watching a video on YouTube, it may last 5 seconds or 5 minutes and then BSOD. What it says is "Hardware Failure Call your hardware vendor for support NMI: Parity Check/ Memory Parity Error. System has halted. I can play audio and ran a test. Audio works perfect, but then I tried turning on the visualizer, and sure enough the BSOD happened mere seconds after the visualizer started. I have a GeForce 6800, and a Diamond Xtreme Sound 7.1 sound card. I have searched numerous forums for a possible fix but nothing seems to work. I mean everything was perfect before I had to reformat. I have all the updated drivers for my cards, DirectX updated, and I am just running out of ideas. I've ran Windows MemTest, and let it do 8 passes in both normal, and extended and it found no errors. If anyone can help, It'd be much appreciated. Sucks not being able to watch any video :(

I would recommend removing this post from the Windows 3.1 knowledge base and re-posting your inquiry on the Windows XP knowledge base where your much more likely to get some helpful responses.