Microsoft KB Archive/128900

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PCMCIA Socket Not Detected on IBM ThinkPad 720C

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Q128900

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The information in this article applies to:


 * Microsoft Windows 95

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SYMPTOMS
The detection routine in Windows 95 Setup does not detect the PCMCIA socket in your IBM ThinkPad 720 or 720C, the IBM ThinkPad 720 is the monochrome display model. PCMCIA socket is also not detected when you run the Add New Hardware Wizard from Control Panel. As a result, protected- mode socket services are not provided.

CAUSE
The IBM ThinkPad 720/720C PCMCIA socket uses the Stinger chip set. The Stinger chip set is not a supported PCMCIA socket chip set for Windows 95 protected-mode socket services.

RESOLUTION
To use the PCMCIA socket on your IBM ThinkPad 720/720C, install the real- mode socket drivers using the manufacturer's instructions.

MORE INFORMATION
To use protected-mode network interface card (NIC) drivers with a PCMCIA NIC, the PCMCIA socket must be supported for protected-mode socket services. Therefore, you cannot use protected-mode NIC drivers when you are using a PCMCIA NIC in the IBM ThinkPad 720/720C.

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Technology : kbWin95search kbWin95