Additional USB port on the mainboard

Discussion in 'Modding and Customization' started by dogber1, Sep 27, 2008.

  1. dogber1

    teh_qube

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    i can confirm 1, dnt know about 2
     
    teh_qube, Mar 17, 2009
  2. dogber1

    2manydjs

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    Thanks Phill and tehqube.
    I'll google some more on Q2.
     
    2manydjs, Mar 17, 2009
  3. dogber1

    HaTaX

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    Close connection soldering isn't bad at all with the right technique:

    Good info and close up of the technique:


    Little more of the same:


    I've actually used this technique, and while it takes a little practice, you end up with a job looking like it came from a machine. :D
     
    HaTaX, Mar 20, 2009
  4. dogber1

    jerryt

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    Thank you very much. I will be soldering these 52 pins today and was going to use a much different method. But this method looks awesome.

    EDIT, In the video the solder flows to the soldering iron and only a small amount remained on the pins. In my life all the solder ran from the sodering iron and bridged all the pins.

    Thank God for de-soldering braid. Managed to complete the Mini PCI Express installation and verified no bridged pins, only took me all day...
     
    jerryt, Mar 20, 2009
  5. dogber1

    stefanello

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    hi guys!! I have 1 question: do you use tin to solder the usb cable onto the cm11 connector?
     
    stefanello, Mar 26, 2009
  6. dogber1

    HappyHarry

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    i used an 60/40 tin/lead mix solder, if you really asking about using flux to tin the cn11 connector points there is no need as they are through hole and are already tinned, but you should tin the ends of the wires :)

    phil
     
    HappyHarry, Mar 26, 2009
  7. dogber1

    XferMe

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    My version of extra USB application

    [​IMG]
    Tested the AAO after disassembly.

    [​IMG]
    Always use anti static bracelet when dealing with sensitive electronics.

    [​IMG]
    My solder work. (INCORRECT, SEE BELOW!!)

    [​IMG]
    Job not properly done! I knew the guy who posted this:
    viewtopic.php?f=43&t=4236&start=20#p32694 made a mistake with the coloring and legend on the picture. Had to do it again.

    [​IMG]
    So I blindly reversed green and white.
    The correct order:
    1. Black (GND)
    • Green (D-)[/list:eek::1crwwbjz]
      • White (D+)[/list:eek::1crwwbjz]
        • Red (5V)[/list:eek::1crwwbjz]

          Sorry, forgot to take the picture of the correct way to solder.

          [​IMG]
          Success! The dongle is working properly now. Let's turn off the computer and reassemble it.

          [​IMG]
          The HDD is gently touching the USB cable securing it in place.

          [​IMG]
          I ran the cable to the empty place where 3G card should have lived and reassembled the AAO.

          [​IMG]
          [​IMG]
          The bluetooth dongle I connected.
          I chose to put bluetooth here, for now, since my soldering iron is too robust to solder to the WiFi's USB feed. I plan to buy a fine soldering iron and permanently put the bluetooth dongle inside, and I will use this port to mount the mouse dongle.

          About the cable:
          I disassembled the extension cable that came with my Logitech VX Nano Cordless mouse. It is a perfect fit. The AAO 3G cover is just gently pressing the cable so it won't move.
     
    XferMe, Mar 29, 2009
  8. dogber1

    stefanello

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    Re: My version of extra USB application



        • great job but.. can't you add an usb interruptor to turn on and off the bluetooth device?
     
    stefanello, Mar 29, 2009
  9. dogber1

    XferMe

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    Well, the dongle that I'm using supports software on/off.
     
    XferMe, Mar 30, 2009
  10. dogber1

    stefanello

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    cool! but.. I know that I'm a pest :D but do you know a method to add an interruptor directly on the usb cable? :)
     
    stefanello, Mar 30, 2009
  11. dogber1

    XferMe

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    You mean something like a switch?
     
    XferMe, Mar 30, 2009
  12. dogber1

    jerryt

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    Add a DIP switch in line with the power wire.
     
    jerryt, Mar 30, 2009
  13. dogber1

    stefanello

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    yep, exactly!!

    mmm.. what's that? do you know a web site that explains how to do it? many many thanks!
     
    stefanello, Mar 30, 2009
  14. dogber1

    XferMe

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    Well, it's quite simple.

    There is this piece called the DIP switch:
    [​IMG]
    For every USB line that you want to control you need one switch. I think two switches DIP is the smallest you can get and that means that you can control two devices.
    How? Well, every switch has two connection pins. You will use these pins to soldier wires to it so you can control the device. You need to put this switch so it controls one of the four wires that go to your device. Ideally you want to control the power wire (red).
    Here is the diagram i made to illustrate:
    [​IMG]
    So you will use this switch's slider number 1 to control this USB device.

    Where and how you mount the switch is entirely up to you. :)
    There are some showcases of DIP switch usages on EEE PC user forums, bud I don't have links to them at my disposal.
     
    XferMe, Mar 30, 2009
  15. dogber1

    jerryt

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    Here is a 4 position DIP switch mounted in a AAO.
     
    jerryt, Mar 30, 2009
  16. dogber1

    stefanello

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    Cool, awesome, great!!! Many thanks!! So, if I need to connect only one thing (eg an usb 3g drive) i need the blue one in the first pic and i need to break the power cable and connect it to the pins? Right? ^^ very cool!
     
    stefanello, Mar 30, 2009
  17. dogber1

    XferMe

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    Exactly ;)
     
    XferMe, Mar 31, 2009
  18. dogber1

    stefanello

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    wow thanks a lot!! I'll try it!
     
    stefanello, Apr 1, 2009
  19. dogber1

    teh_qube

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    you routed out a ram slot?? :O what did u use?? very nice work..!!
     
    teh_qube, Apr 2, 2009
  20. dogber1

    jerryt

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    I was planning on re-using the piece I cut out for the Ram Door, which require that the cuts be very thin. So I made a piece of aluminim (A template) the size I wanted the door to be, then bonded it inside the case in the proper location with 5 minute epoxy. Next I used a razor knife and punctured all around the Template with the tip of the razor knife. Then start to connect all the puncture marks by slicing with the razor knife.

    I am looking at adding a Mini PCI Express connector, attached to the ram module with double sided tape. Most mPCIe cards fit with the same piece of plastic as removed for a door. But a couple of mPCIe cards I have are too thick, so now I am trying to build a new Ram Door which is vacuum formed to have a hump to fit any mPCIe card...
     
    jerryt, Apr 2, 2009
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