Troubleshooting Device Conflicts with Device Manager
This article was previously published under Q310126
This article has been archived. It is offered "as is" and will no longer be updated.
This article provides steps that you can use to troubleshoot hardware configuration problems by using Device Manager. You can use Device Manager to examine and change software-configurable devices. Note that if your hardware device uses jumper pins or dip switches, you must configure thedevice manually.
To start Device Manager:
- Click Start, and then click Control Panel.
- Click Performance and Maintenance, and then click System.
- Click the Hardware tab, and then click Device Manager.
- If there is a problem with a device, it is listed in the hardware tree. Also, the problem device has a symbol that indicates the type of problem:
- A black exclamation point (!) on a yellow field indicates the device is in a problem state. Note that a device that is in a problem state can be functioning.
- A problem code explaining the problem is displayed for the device.
- A red "X" indicates a disabled device. A disabled device is a device that is physically present in the computer and is consuming resources, but does not have a protected-mode driver loaded.
- A blue "i" on a white field on a device resource in Computer properties indicates that the Use automatic settings feature is not selected for the device and that the resource was manually selected. Note that this does not indicate a problem or disabled state.
- A green question mark "?" in Device Manager means that a compatible driver for this device is installed, indicating the possibility that all of the functionality may not be available. Note that this applies only to Windows Millennium Edition (Me).
- When you double click a specific device in Device Manager, you see a property sheet. The property sheet has a General tab.
NOTE: Some devices may have other tabs besides the General tab. Not all property sheets have the same tabs; some devices may have a Resources tab, Driver tab, and Settings tab, or some combination of these.
At the top of the property sheet, there is a description of the device. When you click the Resources tab, the window in the middle of the tab indicates which resource types are available for the selected device.
The list box at the bottom contains a Conflicting device list. This list indicates a conflict with an error code.
- Note the Use automatic settings check box. If Windows successfully detects a device, this check box is selected, and the device should function correctly. However, if the resource settings are based on Basic Configuration <n> (where <n> is any number from 0 to 9), it may be necessary to change the configuration by selecting a different basic configuration from the list. If the particular configuration you want for the device is not listed as a basic configuration, it may be possible to click the Change
Setting button to manually adjust the resource values.
For example, to edit the Input/Output Range setting:
- Click the Use automatic settings check box to clear it.
- Click Change Setting.
- Click the appropriate I/O range for the device.
If the issue continues to occur, you may need to contact the manufacturer of your computer or motherboard to inquire about how to obtain and install a BIOS update for your computer.
Additional SupportFor additional information about the error codes that are generated by Device Manager, click the article number below to view the article in the Microsoft Knowledge Base:
310123 Explanation of Error Codes Generated by Device ManagerFor additional information about how to troubleshoot resource conflicts using Device Manager in Windows XP, click the article numbers below to view the articles in the Microsoft Knowledge Base:
283658 How to Manage Devices in Windows XP
244601 How to Troubleshoot Unknown Devices Listed in Device ManagerIf you were unable to resolve your issue by using the steps that are provided in this article, additional troubleshooting help can be found on the following Microsoft Web site:
For help with device problems in Windows Vista, visit the following Microsoft web page:
device manager green question mark red exclamation blue
Article ID: 310126 - Last Review: 12/07/2015 07:59:43 - Revision: 1.8
Microsoft Windows XP Professional x64 Edition, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional
- kbnosurvey kbarchive kbenv kbfaq kbhowto kbsetup kbtshoot KB310126