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Dell OptiPlex 740 Com port issue

Discussion in 'Hardware' started by Deletedmember328598, Aug 18, 2007.

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  1. Deletedmember328598

    Deletedmember328598 Guest Thread Starter

    I'm running WinXP w/SP2 on a Dell OptiPlex 740. I have an application that requires a barcode scanner to be connected and configured (via serial) to COM2 only. By default, the 740 has COM1 which I was able to manipulate and change to diplay COM2. Also, I changed the interrupt request to 4 and I/O range to 02E8-02EF. This configuration works... until I reboot the computer. At that time, the printer is no longer recognized by the application and it appears that Windows has reveresed the IRQ and I/O settings that I previously set. I have tried rebuilding this machine with Win XP but still get the same issue. Is this a problem with the HAL? A similar set up worked fine on OptiPlex GX150. The HAL on the 740 is currently set at ACPI Uniprocessor PC. Should I switch to Standard PC HAL and avoid the virtual IRQ setup altogether? Does anyone have any suggestions on this?
     
  2. leroys1000

    leroys1000 Banned

    Joined:
    Aug 15, 2007
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    6,319
    Creating a hardware profile after you have the configuration working and
    using that profile to boot may retain the settings.
    As it is now,windows is booting to the default profile.


    To create a hardware profile
    You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.

    Open System in Control Panel.
    On the Hardware tab, click Hardware Profiles.
    Under Available hardware profiles, click Profile 1 (Current), and then click Copy.
    Type a name for the new hardware profile, and then click OK.
    You can customize your new profile by enabling or disabling devices for that profile in Device Manager. For more information about Device Manager, click Related Topics.
    Notes

    To open System, click Start, click Control Panel, and then double-click System.
    The profile named Profile 1 (Current) provides a model for you to create new hardware profiles. It will not appear in the list of available hardware profiles shown during startup.
     
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