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#1
USB 3.0 controller missing
Merry Christmas!
I have been having a problem with the USB 3.0 ports on my computer. I will try to provide as much pertinent information as I can, and hope that someone here can help.
This computer is a Windows 10 64-bit machine that I built in November. It has an Asus P9X79 LE motherboard, and an Intel i-7 4820 CPU.
A few days ago, I noticed that two external drives attached to the two rear USB 3.0 connections were not showing up among the listed drives. This MB also has a USB 3.0 header, to which I have connected four USB 3.0 ports on the front of the case. I found that my drives, and other USB devices, were recognized and worked fine when plugged into the front ports, but not when plugged into the back.
The first thing I did was check the USB section of the Device Manager. The USB 3.0 controller was listed, and there were no warnings (yellow “!” icons) to indicate any problems. Since then, I have tried the following:
First, I searched for hardware changes in the Device Manager. It found nothing.
Second, I deleted the USB 3.0 controller and rebooted to get the system to reinstall the device. It did reinstall the device, but this accomplished nothing.
Third, I updated the BIOS to the latest version on the Asus website. I verified with ASUS that this was indeed the most current version. No change.
Fourth, I updated all chipset drivers for the MB, with the current files on the Asus website. No change.
Then, a couple of days later, the front USB ports stopped working. Checking the Device Manager, the USB 3.0 controller is now missing. Checking online, I found a suggestion that USB 3.0 might be disabled in the BIOS, so..
Fifth, I checked the BIOS settings, and found no way to enable or disable USB 3.0.
One thing that is very odd about this, which the Asus tech commented on, was that the front ports were working while the back ones were not, since they rely on the same controller.
So, I have two questions. First, any suggestions? I am willing to try whatever someone thinks might help.
Second, if I were to purchase a PCI-e USB 3.0 board, would it have its own controller, so I won’t have to rely on the Asus MB for this functionality? At $20 or so, that might be the easiest route, if it will work.
Thanks.