omenofthephoenix

Asus does not offer W7 32 or 64bit chipset drivers for that motherboard, they do offer them for Vista 64bit, and should work for W7, but they are dated 03/07/2008, they might work better than the default drivers W7 installed. Choose Vista 64bit as the OS selection to download the chipset drivers. http://support.asus.com/download/download.aspx?modelname=M2N-VM%20DVI&SLanguage=en-us If found this on the Nvidia site, not sure it is the chipset driver though. http://www.nvidia.com/object/nforce_vista64_15.23.html . Tried those (updating chipset drivers) and I think it helped, but still getting high USBport.sys in DPC and Interrupts CPU usage. Still freezing up at regular intervals.

Hi everyone, I have spikes in CPU usage at fairly regular intervals when streaming video or playing a game full-screen. I have done as MagicAndre has suggested and done a trace and found the USBport.sys is most likely the problem. You mentioned updating chipset drivers, I think I did that but not sure if I did it correctly, I don't really understand the chipset thing. Tried updating USB drivers, nVidia chipset? drivers and BIOS but still having problems. Anyone able to help? Let me know if there's any info you might need. AMD athlon processors ASUS M2N-VN DVI motherboard nVidia chipset (nForce 560 and Southbridge nForce 630a) from CPU-Z Windows 7 Pro 64bit