How to start Device Manager:
1. Click Start, point to Settings, and then click Control Panel.
2. Double-click System, and then click the Device Manager tab.
Troubleshooting Information
• If there is a problem with a device, it is listed in the hardware tree under Computer. Also, the problem device has a symbol that indicates the type of problem:
o 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.
o A problem code explaining the problem is displayed for the device.
o 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.
o 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.
o 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).
NOTE: Some sound cards and video adapters do not report all of the resources they are using to Windows. This can cause Device Manager to show only one device in conflict, or no conflicts at all. This can be verified by disabling the sound card, or by using the standard VGA video driver to see if the conflict is resolved. Note that this is a known problem with S3 video adapters and 16-bit Sound Blaster sound cards, or those sound cards that are using Sound Blaster emulation for Sound Blaster compatibility.
• When you select a specific device in Device Manager and then click the Properties button, 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 Resource 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 Resource 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
For example, to edit the Input/output Range setting:
1. Click the Use Automatic Settings check box to clear it.
2. Click Change Setting.
3. Click the appropriate I/O range for the device.
Notes
• If you click My Computer and then click Properties, you see a property sheet with a View Resources and a Reserve Resources tab.
The Reserve Resources tab excludes a resource from use by Windows.
The View Resources tab displays the resources that are allocated by Windows or inherited from a Plug and Play BIOS or PCI bus computer.
• To disable a device in Device Manager, in Properties, on the General tab, clear to select the Disable in this hardware profile check box.
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