No Sound On Some PCMCIA Modems in Windows NT 3.51

 Last reviewed: September 7, 1996
Article ID: Q147349
The information in this article applies to:
  • Microsoft Windows NT Workstation version 3.51
  • Microsoft Windows NT Server version 3.51

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

KBCategory: kbhw
KBSubcategory: ntdriver NTSrvWkst
Additional reference words: prodnt 3.51 card

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Last reviewed: September 7, 1996
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