Enabling DMA on Windows 2000, XP

Right click the My Computer icon on the desktop and click Properties.

Select the Hardware page and click the Device Manager button.


Locate the Primary and Secondary IDE Channels as highlighted below, and double click on the one your hard-drive is connected to (usually the Primary IDE Channel).


Open the Advanced Settings page on the IDE Channel Properties window that appears.


Click the Transfer Mode dropdown box and select "DMA if available".


In the end, it should look like this. Now click on the OK button to confirm the changes.


If you reopen the window, it should state something similar to the area highlighted below.


That's it, you've just enabled DMA. Depending on the number of devices you have on your system, it could be useful to do this on the Secondary IDE Controller as well, and to both devices on each of them.

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