Microsoft KB Archive/103914

From BetaArchive Wiki

Err Msg with Adaptec 1542c: Cannot Write to Drive C


The information in this article applies to:

  • Microsoft Windows versions 3.1, 3.11
  • Microsoft Windows for Workgroups versions 3.1, 3.11


When you run Windows or Windows for Workgroups and use an Adaptec 1542c bus-mastering SCSI hard disk controller, you may receive the following error message:

Cannot write to drive C:


The Adaptec 1542c controller does not need a device driver to function correctly in most circumstances. However, on some hardware, it cannot perform necessary functions (such as double buffering for direct memory access) without a device driver.


According to Adaptec Technical Support, a possible workaround is to use ASPI4DOS.SYS, which is normally used only with the 1542b SCSI controller. Load this driver in the CONFIG.SYS file as follows:


This line assists the controller in performing its functions.


You can obtain ASPI4DOS.SYS from the Adaptec bulletin board service or Adaptec Technical Support.

The Adaptec 1542c Controller is manufactured by Adaptec, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Additional query words: 3.10 3.1 3.11 ASPI4.DOS

Keywords :
Issue type :
Technology : kbAudDeveloper kbWin3xSearch kbWFWSearch kbWin310 kbWin311 kbWFW310 kbWFW311

Last Reviewed: October 8, 1999
© 2001 Microsoft Corporation. All rights reserved. Terms of Use.