close

Privacy guaranteed - Your email is not shared with anyone.

USB Hub Question

Discussion in 'Tech Talk' started by EagleOne716, Dec 13, 2008.


  1. EagleOne716

    EagleOne716
    Expand Collapse
    Guest

    Here is the situation:
    1. Running a computer under Windows 2000 Pro
    2. Have a USB 2.0 card installed
    3. Cable running from 2.0 card to a powered USB Port
    4. When I run external CD burner...no problem.
    5. When I insert a Kingston DataTraveler 2 GB into the powered hub, it says that there is not enough power to run it.
    6. If I run any other USB thumb drive..no problems, just the Kingston.
    Now....it gets better....
    7. I plug a NON-powered USB port into the POWERED port....and the Kingston drive reads/writes with no problem.
    THIS JUST DOES NOT MAKE SENSE....
    Any suggestions????? Ideas????
    Thanks...EAGLE :wavey:
     
  2. EagleOne716

    EagleOne716
    Expand Collapse
    Guest

    13 viewings....and no idea?
    This must be more complicated that I thought :upeyes:
     

  3. aspartz

    aspartz
    Expand Collapse

    Joined:
    Oct 19, 2000
    3,258
    122
    Location:
    Sandstone, MN 55072
    It sounds like the powered hub is mis-reporting the amperage available at its downstream ports.
    Back when wheels were square I knew how to check this on an os9 mac, os X and windows, i have no clue.

    ARS
     
  4. JimmyN

    JimmyN
    Expand Collapse

    Joined:
    Sep 29, 2006
    1,266
    7
    Location:
    Virginia
    Your using Win2K Pro so do this:

    Start>Settings>Control Panel
    System>Hardware>Device Manager

    Scroll to the bottom and click the '+' to expand "Universal Serial Bus Controllers. Or double click on controllers if you are using an icon Control Panel view

    There you will see all USB devices listed, as well as the hubs.
    Right click on any hub or device and select 'Properties' then the 'Power' tab.

    On this computer I have 4 - USB Root Hubs shown in the list, those are on the motherboard. My external powered hub shows up as "Generic USB Hub"
    Choosing 'Properties>Power' on this device shows the hub as self powered, and has 500mA available per port.
    There are 4 ports available, one is in use using 96mA for a "USB Storage Device" which in this case is an external USB harddrive.

    Maybe that will help you gather a little info on the problem......
     
Loading...
Similar Threads Forum Date
Xtra-PC USB Linux hub Tech Talk Sep 3, 2015
USB question Tech Talk Aug 3, 2006
recommend a USB HUB Tech Talk Dec 1, 2005
USB PCI card or external hub? Tech Talk Mar 26, 2005
So I bought this USB 4 port HUB..... Tech Talk Jan 14, 2005