Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Installing a USB Hub up-front? Read this...

  1. #1
    Maximum Bitrate hd54321's Avatar
    Join Date
    Jun 2004
    Location
    Los Angeles
    Posts
    839

    Installing a USB Hub up-front? Read this...

    Hey guys. Some of you already know this, but I felt like writing it out in plain language without having to search through 100 posts.

    If you are planning on putting a USB hub somewhere in your car, remember that you can not mix USB 1.0/1 and USB 2.0 devices. If you do, the USB 2.0 devices will default to USB 1.0/1 speeds and you will receive that nasty stupid icon in your task bar notifying you that your devices can run at higher speeds.

    This is also true when connecting different USB devices (1.0/1 & 2.0) to ports administered by the same USB controller on your motherboard.


    To solve this, I had to run two different USB lines from my computer to the hubs in my glovebox. One of the USB cables is connected to a USB 2.0 port on one controller of my motherboard while the other cable is connected to another USB 2.0 port on another controller - I keep all my USB 1.0/1 & 2.0 devices isolated on different controllers of the motherboard. So, I have 2 hubs in my glovebox: one exclusively for USB 1.0/1 devices and another exclusively for USB 2.0 devices (i.e. memory card reader and usb dvd drive).

    Don't get me wrong, while there are some usb hubs that can handle both USB 1.0/1 and USB 2.0 devices simultaneously, they are difficult to find for a good price. Good luck.

    -HD

  2. #2
    Maximum Bitrate
    Join Date
    Mar 2005
    Location
    Pomona, CA
    Posts
    456
    I read through the Toms hardware article and find this whole situation to be somewhat confusing.

    I understand that speed is hindered when USB 1.1 devices are hooked up, but according the the article his benchmark tets didnt shot a HUGE performance drop.

    Now, with most of our setups where we have DVD drives and such in the front of the car with USB keyboards, mice, touchscreens, sometimes GPS recievers, etc etc... Which devices will be run simulataneoulsy to the point where they would affect overall system performance.

    The obvious thing I would worry about is DVD playback when using the touchscreen, or cell phone as a modem etc. Did you notice performance issues when you had it hooked up the previous way? What exactly happened to you to make you want to change it?

    Also, it really seems like there is no way to determine which chipset you have on your USB hub. Any ideas there?

  3. #3
    Maximum Bitrate hd54321's Avatar
    Join Date
    Jun 2004
    Location
    Los Angeles
    Posts
    839
    Quote Originally Posted by sivart321
    I read through the Toms hardware article and find this whole situation to be somewhat confusing.

    I understand that speed is hindered when USB 1.1 devices are hooked up, but according the the article his benchmark tets didnt shot a HUGE performance drop.

    Now, with most of our setups where we have DVD drives and such in the front of the car with USB keyboards, mice, touchscreens, sometimes GPS recievers, etc etc... Which devices will be run simulataneoulsy to the point where they would affect overall system performance.

    The obvious thing I would worry about is DVD playback when using the touchscreen, or cell phone as a modem etc. Did you notice performance issues when you had it hooked up the previous way? What exactly happened to you to make you want to change it?

    Also, it really seems like there is no way to determine which chipset you have on your USB hub. Any ideas there?
    I was just getting that stupid USB icon in the taskbar whenever I connected USB 1.0/1 & 2.0 devices on the same hub. I searched here and on the internet and realized that you can't mix devices on the same controller. Thus, 2 seperate usb hubs. It only cost me about $20 more (for a 15' usb cable & a usb 2.0 hub) but saves a lot of hassle.

  4. #4
    Jesus Freak antimatter's Avatar
    Join Date
    Jan 2004
    Location
    California
    Posts
    4,545
    I didn't know that, thanks for sharing
    -Jesus- King of Kings Lord of Lords

  5. #5
    Newbie
    Join Date
    Jul 2005
    Posts
    30
    Probably the difference between a usb hub and switch, if there even is such a thing

  6. #6
    Maximum Bitrate Altimat's Avatar
    Join Date
    Oct 2003
    Location
    WI
    Posts
    764
    I keep my DVD players isolated on their own 2.0 controllers without a hub. I don't care what speed the other stuff on the hub runs at.
    Fabricator

  7. #7
    Low Bitrate
    Join Date
    Sep 2003
    Location
    St. Louis
    Posts
    81

    Post

    I have found that if I use a certified USB 2.0 hub I can mix devices. but if I use a standard hub I can not mix devices. I just noticed this after reading this post and doing some experiments

  8. #8
    Newbie Micco's Avatar
    Join Date
    Jan 2004
    Posts
    47
    These USB Hubs from Belkin will auto-detect (as mentioned above) and not limit 2.0 devices when 1.1 devices are connected.
    Micco
    Project Status: Installed! (v1.0)
    Mac Mini (1.4ghz, 1G RAM, 80G HD)
    XENARC 7" (DigtalWheelz)
    Carnetix 1900 + P5V Powersupply
    AII-NIS HU Adapter
    iMic
    Belkin 7-port "Tetra" USB hub
    Front end...CCar right now.

  9. #9
    Maximum Bitrate
    Join Date
    May 2004
    Location
    Denver
    Posts
    487
    Quote Originally Posted by chirowolf
    I have found that if I use a certified USB 2.0 hub I can mix devices. but if I use a standard hub I can not mix devices. I just noticed this after reading this post and doing some experiments
    how can you tell the difference between "certified" and "standard"??

  10. #10
    Maximum Bitrate Altimat's Avatar
    Join Date
    Oct 2003
    Location
    WI
    Posts
    764
    Certified parts have the "Certified USB 2.0 High Speed" sticker on them.
    Fabricator

Page 1 of 2 12 LastLast

Similar Threads

  1. Problem with ITPS / hibernation and External USB HD
    By veetid in forum Power Supplies
    Replies: 5
    Last Post: 01-02-2006, 09:35 PM
  2. WTB: USB 2.0 Hub
    By Bailey in forum Classified Archive
    Replies: 8
    Last Post: 04-28-2005, 09:01 PM
  3. usb hub issues please help
    By Cat Monkey in forum General Hardware Discussion
    Replies: 3
    Last Post: 11-27-2004, 09:44 AM
  4. Internal USB Hub?
    By jrich523 in forum General Hardware Discussion
    Replies: 10
    Last Post: 07-07-2004, 08:44 AM
  5. Powering USB 2.0 Hub off HDD +5v Rail - Any problems?
    By sq_geek in forum Power Supplies
    Replies: 12
    Last Post: 06-07-2004, 10:11 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •