Modem Not Recognized

This table should help you troubleshoot and fix problems when the internal modem is not recognized. Follow the instructions under the "Possible Fix" column to resolve the problem.

Possible Cause

Possible Fix

Modem Is Not Recognized: If the modem is not recognized or listed in the application or OS, refer to this section of the table.

Needed extensions or CCL files are not installed or are corrupt.

Are the correct CCL and extension files installed? (Note: You will need the iMac Modem Extension and the iMac internal modem CCL.) Yes: The CCL or extension may be corrupt. Reinstall the CCL and modem extension. If the problem persists, reinstall the system software and try again. No: Install the correct CCL and modem extension and try again.

PRAM is corrupt.

Zap PRAM by holding down Option, Command- P-and R keys.

Serial Port Not Available message: If the Modem Control Panel and/or AppleWorks reports that the serial port is not available, refer to this section of the table.

The modem is loose, missing, or bad.

Is the modem installed? Yes: Reseat the modem and try again. If the problem persists, replace the modem board. No: Install a modem and try again.

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