No check box available for enabling DMA transfers in Windows 98 / Me.
When I view my ATA/IDE disk drive in the Device Manager under System Properties, there is no check box available for enabling DMA transfers.

This issue can occur if a non-ATAPI driver is controlling the drive. For example, SCSI drives do not have this check box, and drives attached to third-party ATA/IDE controllers requiring a special miniport driver (such as the Promise Ultra Wide 66 with the ULTRA66.MPD driver) also do not work.

To resolve this issue, use the Esdi_506.pdr file:
  • Click Start, point to Settings, click Control Panel, and then double-click System.
  • Click the Device Manager tab, double-click Hard disk controller, click the appropriate hard disk controller, and then click Properties.
  • Click the Driver tab, click Update Driver, and then click Next.
  • Click Specify the location of the driver (Advanced) to select the driver that you want to use, and then click Next.
  • Click Display a list of the drivers in a specific location to select the driver that you want to use, and then click Next.
  • Click the driver that matches the date of your operating system, and then click Next. Note that for Windows 98 the date is 5/11/1998, for Windows 98 Second Edition the date is 4/20/99, and for Windows ME the date is 6/8/2000.
  • Click Next, click Finish, and then restart your computer.
More Information:
The check box for DMA on a drive is a function of the Esdi_506.pdr file and the configuration manager. It is only available when the Esdi_506.pdr file is used or when a third-party driver provides it.

Close this Window