Lenovo USB 3.0 Port


  1. Posts : 308
    Win10
       #1

    Resolved Lenovo USB 3.0 Port


    We use the below laptop to stream our services at our church. We recently added a second 1080p camera but are getting lots of dropped frames in our streaming software, vMix. How can we tell if the two USB 3.0 ports on the right side of the laptop share a common hub on the motherboard? Is there a program or something we can run that will tell us if they're individual or shared ports?

    Lenovo ideapad Y700-15ISK
    Model 80NV00Q8US
    MFG: 8/22/16
    i7-6700HQ @ 2.60 GHz
    12GB DDR4 Ram
    Realtek Audio
    Audio CODEC: ALC235
    Intel HD Graphics 530
    NVIDIA GTX 960M 4 GB GDDR5
    USB 3.0 2, USB 2.0 1
    Product Overview - ideapad Y700-15ACZ, Y700-15ISK, Y700 Touch-15ISK, Y700-17ISK - Lenovo Support US

    - - - Updated - - -

    Sorry all, not only was this question already asked but I'm the one who asked it...

    Computer specs

    I just PM'd Paul Black for his utility and will see what it tells me about the motherboard and USB ports. We're just getting frustrated trying to get two 1080p camera's working in our sanctuary.
    Last edited by Soapm; 07 Mar 2023 at 20:09. Reason: Resolved
      My Computer


  2. Posts : 2,264
    Windows 10 Pro/Windows 7 Ultimate
       #2

    In Windows 7 and even XP you could right click a USB hub in Device Manager and see the power consumption. In Windows 10 you can't.



    Lenovo USB 3.0 Port-zsx.jpg


    I personally use a USB power meter to see what the Amp consumption is of my USB devices.
    A computer will dish out a max of 500 milliamps (half an Amp) per bus. If you go above that you'll have issues. That's where a good quality powered USB hub comes in at. Preferably one that is UL listed for safety like this one. I own the 4 port and 10 port. For your application I'd use the 10 port. The 4 port only provides a total of 900 mA and they specifically state right there on Amazon that multiple hard drives would not work, yet a user made a video showing how the product is inferior because her two hard drives won't work with the USB hub.

    However, do these cameras have their own power source? If so, then I would say it's not a power issue with the USB ports. It could be software running on the computer or it's the chipset. If possible try safe mode. Or maybe boot the computer with a minimalist of stuff running in the background. Another thing you want to check is whether the computer has your USB ports set to go into power save mode (default config.). Right click the hubs in Device Manger and uncheck that.
      My Computer


  3. Posts : 308
    Win10
    Thread Starter
       #3

    F22 Simpilot said:
    In Windows 7 and even XP you could right click a USB hub in Device Manager and see the power consumption. In Windows 10 you can't.



    Lenovo USB 3.0 Port-zsx.jpg


    I personally use a USB power meter to see what the Amp consumption is of my USB devices.
    A computer will dish out a max of 500 milliamps (half an Amp) per bus. If you go above that you'll have issues. That's where a good quality powered USB hub comes in at. Preferably one that is UL listed for safety like this one. I own the 4 port and 10 port. For your application I'd use the 10 port. The 4 port only provides a total of 900 mA and they specifically state right there on Amazon that multiple hard drives would not work, yet a user made a video showing how the product is inferior because her two hard drives won't work with the USB hub.

    However, do these cameras have their own power source? If so, then I would say it's not a power issue with the USB ports. It could be software running on the computer or it's the chipset. If possible try safe mode. Or maybe boot the computer with a minimalist of stuff running in the background. Another thing you want to check is whether the computer has your USB ports set to go into power save mode (default config.). Right click the hubs in Device Manger and uncheck that.

    Well, it's not the camera's drawing current through the USB Ports, it's the capture cards I have to use to convert HDMI to USB. And yes, they're powered by the USB port and do not have external power source. I guess I could look for capture cards that do have external power??? However, I was thinking the limit was the 5GHZ bandwidth with two camera's at 1080p.

    PS... I never thought to count the HUBs in device manager to see how many I have or which flavor?
      My Computer


  4. Posts : 1,204
    11 Home
       #4

    Soapm said:
    PS... I never thought to count the HUBs in device manager to see how many I have or which flavor?
    Before you count them, you should check if they've all properly been installed. Here is an old example of what might happen if you don't:
    English Community-Lenovo Community
    FWIW, my laptop does have two separate "Intel(R) USB 3.10 eXtensible Host Controller - 1.20" devices listed under Device Manager.

    Lenovo USB 3.0 Port-usb.png
      My Computers


  5. Posts : 308
    Win10
    Thread Starter
       #5

    Yes you do, I see that... Thanks...
      My Computer


  6. Posts : 2,684
    Windows 10
       #6

    In the Device Manager change the View to "Devices by connection".

    Trace the two cameras back to the USB Root Hub.

    Usually 2 USB ports placed close on one side of a Laptop are using the same Hub.

    "However, I was thinking the limit was the 5GHZ bandwidth with two camera's at 1080p."

    It is 5 Gbps, HD video 1080p one channel is about 15 Mbps, so say 30 Mbps total, so 5,000 Mbps is more than enough.

    I would look at the hardware specs of your "capture cards I have to use to convert HDMI to USB. "
    You would be looking to at least HDMI 2.0, preferably 2.1 specs.

    Also the lengths and quality of USB and HDMI leads.

    Essentially the whole system from cameras to display.
      My Computer


  7. Posts : 308
    Win10
    Thread Starter
       #7

    Since they were both on the same USB 3 bus being on the same side of the motherboard and according to device manager. So what I did was unplugged one camera and installed it in vMix then reversed it and installed the other. When I rebooted with the both plugged in they were both recognized and played just fine. Thanks for all the help.
      My Computer


 

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