Loading SMARTDRV.SYS High with Adaptec Controller Hangs System (72735)

The information in this article applies to:
    Microsoft MS-DOS operating system

This article was previously published under Q72735


If SMARTDRV.SYS is loaded high on a system with a Micropolis 330 MB hard disk model #1578-15 with Adaptec Controller model #1542-B, and it is partitioned into a single drive, the system will hang.

Loading SMARTDRV.SYS low before loading anything high solves the problem.


The disk transfers to the upper memory block (UMB) are not being put at the right addresses because the controller is not mapping addresses correctly. The only workaround available is to load SMARTDRV.SYS low (in conventional memory).

Modification Type: Major Last Reviewed: 9/30/2003
Keywords: KB72735