Quote Originally Posted by devilhood View Post
Anyone come across a usbehci.sys BSOD? been trying to figure out exactly what causes this as it is always usbehci.sys that crashes, and it usually happens when my machine is in the process of restarting (still in Windows) or when it first logs into Vista.
The reason for crash is DRIVER_IRQL_NOT_LESS_OR_EQUAL
Is this possibly related to the BIOS EHCI Hand-off feature? or a hardware conflict of some kind?
I had this early on. The exact driver error was "usbuhci.sys" and it was due to my memory getting toasty. Put an extra 90 mm fan over the RAM, voila, problem solved.

The other option would be to loosen your RAM timings and watch your voltages.