B150M Pro4V cannot set both USB 3.0 and 2.0

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   My motherboard is Asrock B150M Pro4V and case is CoolMaster N400. The front panel two usb 3.0 ports and two 2.0 ports "work" for years so I didn't find out the problem. Recently I bought an external SSD then I found out the USB 3.0 in front panel of the case actually just works as USB 2.0 with around 40mb/s. If I unplug then usb 2.0 cable from front panel to motherboard, then the two usb 3.0 port speed become 3.0 speed with over 100mb/s, but the two 2.0 ports do not work at all no response.

I check the bios and no setting related to this. Any idea? Thx!

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
j2ee Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Sep 2020 Status: Offline Points: 3	Post Options Post Reply Quote j2ee Report Post Thanks(0) Quote Reply Topic: B150M Pro4V cannot set both USB 3.0 and 2.0 Posted: 11 Sep 2020 at 1:09pm
	My motherboard is Asrock B150M Pro4V and case is CoolMaster N400. The front panel two usb 3.0 ports and two 2.0 ports "work" for years so I didn't find out the problem. Recently I bought an external SSD then I found out the USB 3.0 in front panel of the case actually just works as USB 2.0 with around 40mb/s. If I unplug then usb 2.0 cable from front panel to motherboard, then the two usb 3.0 port speed become 3.0 speed with over 100mb/s, but the two 2.0 ports do not work at all no response. I check the bios and no setting related to this. Any idea? Thx!