Troubleshooting PCMCIA Cards in Windows 95

• Microsoft Windows 95

                                  SUMMARY
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• Using Both Real- and Protected-Mode Drivers
• Troubleshooting PCMCIA Cards

                               MORE INFORMATION
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Using Both Real- and Protected-Mode Drivers

If you use a real-mode driver for a PCMCIA (PC Card) device such as a CD-ROM drive, your PCMCIA card socket and any other PCMCIA card devices must also use real-mode drivers in Windows 95. Windows 95 does not support the use of real- and protected-mode PCMCIA card devices or socket drivers simultaneously. This combination may cause unpredictable results.

Troubleshooting PCMCIA Cards

Real Mode

Before you install Windows 95, make certain your PCMCIA card device works in real mode. If you have already installed Windows 95, but you have not run the 32-bit PCMCIA Card Socket Wizard, restart Windows 95 at a command prompt. To do so, press the F8 key when you see the "Starting Windows 95" message, and then choose Command Prompt Only from the Startup menu. If your PCMCIA card works in real mode, follow these steps:

1. Restart Windows 95 normally.

2. Use the right mouse button to click My Computer, and then click Properties on the menu that appears.

3. On the Device Manager tab, double-click the device icon, click the PCMCIA device, and then click Remove.

4. Restart your computer.

5. Click the Start button, point to Settings, click Control Panel, and then double-click the Add New Hardware icon.

6. Follow the Add New Hardware Wizard instructions to re-detect your hardware device.

If you use real-mode drivers for your PCMCIA card and you change its resources in Device Manager, the change does not take effect. These resources must be changed with the real-mode drivers and utilities. If you have any questions about these drivers and utilities, please contact your hardware manufacturer.

If your PCMCIA card device does not work in real mode, follow these steps:

1. Restart your computer with your earlier version of MS-DOS. For information about this process, please see the following articles in the Microsoft Knowledge Base:

         ARTICLE-ID: Q121963
         TITLE     : Requirements to Boot Previous Operating System
   
         ARTICLE-ID: Q118579
         TITLE     : Contents of the Windows Msdos.sys File
   
   

2. Test your PCMCIA card.

If your PCMCIA card does work, follow these steps:

1. Start your computer by stepping through the startup files. To do this, press the F8 key when you see the "Starting Windows 95" message, and then choose Step-By-Step Confirmation from the Startup menu.

2. Answer "Yes" to all prompts except:

       - Choose "No" when you are prompted "Process the system registry?"
   

       - Choose "No" when you are prompted "Load the Windows graphical user
         interface?"
   

Protected-Mode

To use a PCMCIA card device in protected mode, the device must be supported by Windows 95 or the vendor must supply a Windows 95 driver.

Before you attempt to use your PCMCIA card device in protected mode, you must first enable the protected-mode socket services. To enable these services, follow these steps:

1. In Control Panel, double-click the System icon.

2. On the Device Manager tab, make sure that the PCMCIA Card Socket device is listed and that it is disabled. Disabled devices are indicated with a red "X."

3. In Control Panel, double-click the PCMCIA Card icon.

4. Follow the PCMCIA Card Socket Wizard instructions.

5. When you are prompted to turn your computer off, do so. Make sure to leave your computer off for a few seconds, and then turn it back on. Do not press CTRL+ALT+DEL or use your computer's reset button to restart your computer.

1. Insert the device in the PCMCIA card socket.

   NOTE: You can insert the device before you turn the computer on, or after Windows 95 has started.

2. If the device is supported by Windows 95, Windows 95 automatically installs the appropriate drivers and, if necessary, requests that you restart your computer. (Most PCMCIA cards do not require a restart.)

3. If the device is not supported by Windows 95, Windows 95 displays a dialog box with these prompts:

         Select which driver you want to install for your new hardware:
   

             - Windows default driver (NOTE: this option is unavailable)
   
             - Driver from disk provided by hardware manufacturer
   
             - Do not install a driver (Windows will not prompt you again)
   
             - Select from a list of alternate drivers
   
      If you have a disk from the manufacturer that contains Windows 95
      drivers for your device, click option 2.
   
      If you have information from the manufacturer that this device
      emulates another device Windows 95 supports, click option 4 and select
      the appropriate device from the list.
   
   

1. Use Device Manager to remove the device, restart your computer, then let Windows 95 re-detect your hardware.

2. If your PCMCIA card is not detected and Windows 95 has a protected-mode driver for it, remove any "EMMExclude=" lines from the System.ini file or any exclusions on the Emm386.exe line in the Config.sys file, reboot your computer, and let Windows 95 redetect your hardware. Note that if the "EMMExclude=" line is the problem, you may hear one beep instead of the standard dual-tone beep when Windows 95 starts.

3. Perform this step only if you have a program that looks for a certain resource setting. Microsoft suggests that you upgrade the program in this case to conform to Windows 95 Plug and Play specifications.

   Force the PCMCIA card device to a specific configuration using the following steps:

   a. In Control Panel, double-click the System icon.

   b. Click the Device Manager tab, double-click the device icon, click

         the device in question, and then click Properties.
   

   c. Click the Resources tab.

   d. Click the Use Automatic Settings check box to clear it.

   e. Click Change Setting and set the resources to the settings you want.