Knowledge Base

No Sound On Some PCMCIA Modems in Windows NT 3.51

Article ID: 147349

Article Last Modified on 11/1/2006

Microsoft Windows NT Workstation 3.51
Microsoft Windows NT Server 3.51

This article was previously published under Q147349

SYMPTOMS

The modem speaker does not work on some PCMCIA modems in Windows NT 3.51.

CAUSE

PCCARDS use configuration registers 1 to 4. The second register is used to inform the modem that the audio pin is wired. In Windows NT, this register is not being set.

RESOLUTION

To correct this problem, apply the fix mentioned below.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt 3.51 card

Keywords: KB147349