Article ID: 229085 - View products that this article applies to.
This article was previously published under Q229085
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When you view properties for drives in Device Manager, the drive may not have a DMA check box.
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 IDE controllers requiring a special miniport (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:
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.
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