Author: kkemerait
Subject: Z77 Extreme4 and USB 2.0
Posted: 25 Oct 2016 at 12:41am
I have (as have many others) been experiencing problems with Schiit MODI DAC connecting using USB 2.0 .. I have read that on the Z77 Extreme4 (maybe other MB as well) that if USB 3.0 is enabled in the bios that all ports (both 2.0 and 3.0) are routed to the eXtensible Host Controller and that the only time the USB 2.0 ports are routed to the Enhanced Host controller is when USB 3.0 is disabled? Is this accurate?
Subject: Z77 Extreme4 and USB 2.0
Posted: 25 Oct 2016 at 12:41am
I have (as have many others) been experiencing problems with Schiit MODI DAC connecting using USB 2.0 .. I have read that on the Z77 Extreme4 (maybe other MB as well) that if USB 3.0 is enabled in the bios that all ports (both 2.0 and 3.0) are routed to the eXtensible Host Controller and that the only time the USB 2.0 ports are routed to the Enhanced Host controller is when USB 3.0 is disabled? Is this accurate?
The USB device in question always generates a port reset failure when connected, but it seems to happen ONLY on ASROCK boards. It works fine on others.
Running windows 10 professional 64 bit. The USB 2.0 ports work fine with any other device (mouse, kbd, etc.) I can also use same cable for a different device without problem. The Technical people at Schiit say it is probably a driver implementation. Doing a complete reformat and reinstall and installing all service packs/updates did not address the issue.
eXtensible Host Controller Driver is 10.0.14393.0
Enhanced Host Controller Driver is 10.0.14393.0
They are the same driver's on the ASROCK MB as on the machine which works (Non ASROCK)
Here are the two device events in question:
"Device USB\VID_0000&PID_0001\6&1a8123c&0&5 had a problem starting.
Driver Name: usb.inf
Class Guid: {36FC9E60-C465-11CF-8056-444553540000}
Service:
Lower Filters:
Upper Filters:
Problem: 0x2B
Problem Status: 0x0"
and
Device USB\VID_0000&PID_0001\6&1a8123c&0&5 was configured.
Driver Name: usb.inf
Class Guid: {36FC9E60-C465-11CF-8056-444553540000}
Driver Date: 06/21/2006
Driver Version: 10.0.14393.0
Driver Provider: Microsoft
Driver Section: BADDEVICE.Dev.NT
Driver Rank: 0xFF0000
Matching Device Id: USB\RESET_FAILURE
Outranked Drivers: usb.inf:USB\RESET_FAILURE:00FF2000
Device Updated: false
Parent Device: USB\VID_8087&PID_0024\5&21d3f4f7&0&1
any help or suggestions would be greatly appreciated.
Thanks in Advance