ehci handoff for usb, what is this?

[johnspack]

I accidentally enabled this I guess, and I've had weird bsods on and off. I disabled it again, and seems to have stopped. I know it shouldn't be used for newer oses like vista and newer, but what is it doing that I'd get weird bluescreens that I can't trace. Mostly points to driver error or app error. Weird. Completely messed up an ocing session. Make sure this is set to Disabled in your bios!

 

[Steevo]

Enhanced Host Controller Interface


You just need to install the drivers so windows will control the USB hubs/devices and their power levels.

Otherwise it uses OHCI, or controller level interfaces that may be slower and or hardware control limited.

 

[johnspack]

Well, my x58 bios has a setting to override or what ever ehci handoff for older oses, some kind of replacement. I think since it got enabled, I had at least a dozen bluescreens over the last 2-3 months since for things it shouldn't be. Since I set it back to disabled, I've had stable bliss! I ran the whole gamut of crash dump diags, including the ms debug tools and full symbol support. It kept pointing towards a driver. I'm still waiting to see if it bluescreens again, but so far all is good. I did get a lot of odd pointers toward my symantec endpoint protection however, so I might just get rid of it.

 

[johnspack]

Okay, now I have to really watch this.. stepped it up to 4.15ghz and ran multiple benchies, and stable. If this is the reason I couldn't oc this thing, I'm going to be really pissed!