Usb Ports on back of XPS 8700 may have died on me

I recently got a new external hard drive to move files to from an exisitng filled 2TB external harddrive. I had both harddrives connected via usb 3.0 to the usb ports at the back of the computer.
after a 6 hr file transfer, later in the day, I rebooted my computer... and the ports stopped working. at first I thought it was my logitech keyboard and mouse drivers out of date. Then I realized nothing was working from the back six ports.
There are 4 usb 3.0 ports and two regular usb ports at the back of the computer.
There are 2 ports on the top of the computer, and 2 in the front of the computer.
I took a look through the forums and did find a similar post of usb ports stop working, but I'm not so sure this one is entirely not working because of drivers.
I did take a look on google on where to look and i did check device manager- "Universal Serial Bus (USB) Controller" says that the drivers for this device are not installed. windows isunable to find the correct drivers, and I feel like this has a very specific driver to make it work. however, the fact that the other 4 ports on the computer lead me to believe that the back 6 ports have died, or some people online say are disabled.

Is there a proper way to see if each port is working?

How do I go about fixing this or do I need a new MB? -> if so, is moving the CPU easy or hard?

As mentioned in the title, it's a dell XPS 8700 computer with windows 7 x64.
Please let me know if it may be a PSU problem, although I don't think it is as I had the same amount of load for about 2 years.

Thanks in advance.

[edit]

I forgot to mention that when the computer boots with the mouse and keyboard plugged into the back usb ports, the mouse and keyboard do light up, so I do not think this is a problem with BIOS. it's after BIOS finishes and windows boots when the mouse and keyboard stop working on the back 6 ports.