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  1.    #1  
    Ok, here's what happened. Laptop suddenly powers off without warning. Won't turn back on. Me, freaking out! Couple of hours later try again, and it comes up showing the message "laptop shutdown due to overheating". Ok, fine. Open up the fan assembly and sure as hell there's a nice hunk of cat hair there. Clean that and open the beasty up to make sure it's clear. Ok, fine.

    Slap it in the docking station and no Mouse/KB control(separate USB KB/Mouse plugged into docking station). Undock it and try a variety of USB devices; thumb drive, Treo 700wx, etc and NO USB action. No "device recognized, nothing. There IS power to the USB however as my phone will charge.

    After researching on the series of tubes, I tried removing all the USB Serial Controllers from the Device Manager list and rebooting. XP (pro) saw each one and installed it. I thought SCHWEET! I'm back! I can sync my Treo! BUT NO. Same condition. Power but no USB functionality. Not even a KB or simple mouse.

    It may seem like just an inconvienece compared to the expense of buying a new laptop, but DAMN. Not having USB is seriously crippling.

    Do any of you hardware gurus have any thoughts on this? Is something on the board screwed? Could a PCMI USB card work?

    HELP!
  2. #2  
    I highly recommend buying a Mac....

    This might help? --->

    If your USB device is not working on all of the ports on your unit it is possible that the problem is an incompletely installed device driver. It is important to realize that each USB port connection is isolated from the others and there will be a separate driver for each, making it possible for the USB device to operate correctly on one port but fail to operate on another.

    The following procedure may assist in resolving any problems stemming from an incompletely installed driver.

    Attach the USB Device to the port where it is not functioning correctly.
    Click on START, SETTINGS, CONTROL PANEL. Double Click on SYSTEM and select the Device Manager tab.
    Look for your USB device in the list in Device Manager. It will probably have a Yellow circle with an Exclamation in it near the icon for the USB device
    Single click on the USB device name to highlight it. Click on the REMOVE button at the bottom. You will be given a message box that says "Warning: You are about to remove this device from your system." Click on OK. Close Device Manager.
    Unplug the USB device and then reconnect it to the same USB port. The system should bring up the New Hardware Detected window and proceed to prompt you for the installation drivers for the USB Device. Follow through the process, referring to your USB Device manual for any specific installation selections or configuration.
    In most cases this will reinstall the USB device properly and will allow it to operate correctly regardless of which USB port is used.
  3. #3  
    If everything else is ok after you cleaned the cat hairs out, I would be inclined to believe that the hardware has not been damaged and that there is a corruption in the drivers (or related) as impish indicated. Keep us posted. I just went through a similar grueling 10 hour debug a couple of days ago before finally getting my own laptop back up; talk about stress.
  4.    #4  
    Quote Originally Posted by impish View Post
    If your USB device is not working on all of the ports on your unit it is possible that the problem is an incompletely installed device driver. It is important to realize that each USB port connection is isolated from the others and there will be a separate driver for each, making it possible for the USB device to operate correctly on one port but fail to operate on another.

    The following procedure may assist in resolving any problems stemming from an incompletely installed driver.

    Attach the USB Device to the port where it is not functioning correctly.
    Click on START, SETTINGS, CONTROL PANEL. Double Click on SYSTEM and select the Device Manager tab.
    Look for your USB device in the list in Device Manager. It will probably have a Yellow circle with an Exclamation in it near the icon for the USB device
    Single click on the USB device name to highlight it. Click on the REMOVE button at the bottom. You will be given a message box that says "Warning: You are about to remove this device from your system." Click on OK. Close Device Manager.
    Unplug the USB device and then reconnect it to the same USB port. The system should bring up the New Hardware Detected window and proceed to prompt you for the installation drivers for the USB Device. Follow through the process, referring to your USB Device manual for any specific installation selections or configuration.
    In most cases this will reinstall the USB device properly and will allow it to operate correctly regardless of which USB port is used.
    Although I've attempted updating the USB drivers repeatedly I went ahead and followed your steps. No matter what device I plug in I get no response from the system. In Device Manager there are no listings of the devices I've plugged in (keyboard & thumb drive). There are no, none, zero "yellow circle" warnings in the device manager for anything.

    Let me add, there are two USB ports on the back, one above the other. When I plug into the upper one, there is power but no device recognition AT ALL, but when I plud a device into the lower one, system freezes completely.

    I guess I'm just going to have to try a PCMI USB card to limp along until I can swing a new laptop.
  5. #5  
    To rule out software related problems first backup and do a hard reset

    Thats joking, but still true. If you can do a full backup, do so, and re-install Windows. If it still does not work is certainly hardware. No matter what else you do I would then start backing up important files regularly, as who knows what else has been damaged.

    Surur
  6. #6  
    Before doing the Windows re-installation, you could do a system restore which might solve it:
    http://www.microsoft.com/windowsxp/u...emrestore.mspx
  7.    #7  
    System restore; no change. I'm fubared. Gonna look for a USB PCMI card. Will likely do a clean install this weekend but I'm pretty sure there's a hardware issue with those ports.
  8. #8  
    Quote Originally Posted by daThomas View Post
    System restore; no change. I'm fubared. Gonna look for a USB PCMI card. Will likely do a clean install this weekend but I'm pretty sure there's a hardware issue with those ports.
    Itís an odd thing since you didnít drop the computer or damaged it knowingly, but it sounds like indeed a physical harm occurred somehow. The USB PCMI card might be the proper option, but try first cleaning-reinstalling just in case. Good luck!
  9.    #9  
    Got a PCMI USB card at lunch. Works. So syncd my phone for the first time in a while. Not pretty but I'll have to limp by like this. Maybe by some miracle the port replicator will work now.
  10. #10  
    My neighbour had a similar problem..
    He accidently removed his USB host drivers (not sure how he did that).
    What I ended up doing is removing the USB host items in device manager and let windows rediscover them and add the drivers..

    With some fidling that did the trick.. may work for you too..
    <IMG WIDTH="200" HEIGHT="50" SRC=http://www.visorcentral.com/images/visorcentral.gif> (ex)VisorCentral Discussion Moderator
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