- #REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER INSTALL#
- #REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER DRIVERS#
- #REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER DRIVER#
- #REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER PATCH#
#REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER DRIVER#
Actually could not easily find anything mentioned about the limits inside.Īsus replied me with a new driver (not latest like from Intel page). Intel support sent me a link to the datasheet with more than 500 pages. I can see that limit easily being hit by 15-18 devices. Ivy Bridge xHCI hosts are limited to 64 endpoint rings, including control endpoint rings. Even after removing all components manually, so should be now leftovers from my previous tries :(
#REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER INSTALL#
The latest driver from Intel seems to be not stable during installation ("Does not meet system requirements", Aborts installation in middle, brings bluescreen during install and startup). I installed the version again that comes from Asus.
#REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER DRIVERS#
The root hub was replaced by old drivers automatically and new devices were not enumerated correctly. (It's possible to set a timeout and a debugging flag in registry, but this did not change anything for me)Ĭonclusion: Too much time wasted Should be documented somewhere! iusb3mon.exe seems to be there only for user feedback (tray balloons).
#REMOVE INTEL USB 3.0 EXTENSIBLE HOST CONTROLLER DRIVER PATCH#
Looks like I can use 2 more devices with that, which is currently enough for me.I also tried to patch the drivers, but w/o luck so far. Solution for me: I manually installed the desktop drivers for C220 (hub+xhci, not the PCI drivers in HCSwitch folder) instead of the recommended C216 ones. Next step: Change it to have more than 15/16 devices. I think next startup they will be back to the problematic Intel USB hub.Ĭonclusion is, that this Intel driver provides a virtual USB hub - maybe like advised by the driver name (eXtensible) it just provides extra features to USB.
On device manager and USBView my devices werde definately shown on the other USB hub, even after reinstalling the Intel drivers. And also very interesting (this is what I mean with mess): It was now using the USB ports which formerly I thought are not routed to the outside of the notebook. This means it is a software limitation by the Intel driver. More I could not test, since not enough devices laying around. I easily could extend the USB ports to 34. Next update: What a mess!!! I uninstalled this Intel driver, so it showed up as unknown device in device manager. (like the connected devices are counted as endpoints for the root hub) This number is close to the free+used slots which I found on USBView. Playing with two devices that have a different count of endpoints confirms that :( A device can have upto 32 endpoints. Maybe they limit the total number of endpoints? USBView tells that there 15 connected devices (1 not working due to the limits) and 16 free slots. and the notification message can be found in the localization part of the driver :-)Īnother thought is that the connected USB hubs reserve slots even they are currently not in use. Since I could not find any information on the web about it, my last step was to contact Intel. USBDeview just shows up 36 connected devices in total (none related controller included). Since I'm running a USB docking station with a lot of devices connected it might be that I just crossed the 127 device limit, which I could hardly believe. Upgrading the driver to the latest found on Intel page did not change anything.Īdditonally it seems that all external ports on the Asus N56VZ are connected to this controller - even there is one totaly unused controller inside (what is the reason that this one is not forwarded to the outside world?). First I tried to connect through some hubs - than directly to the notebook in case the USB hub chain is too long -) I was still unlucky. Just got notified by my system that I'm attaching more than the allowed devices to the Intel USB 3.0 eXtensible host controller/C216.
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