How do I open the motherboard DMA channel?

Right-click the My Computer icon on the Windows desktop and select the Properties System Properties window from the pop-up menu to appear.

Click the Device Management tab.

Double-click CDROM drive to view the hard drive list.

Right-click the IDE disk (there may be other names, such as GENERIC IDE disk) and select Properties from the pop-up menu to appear in the Hard Disk Properties window.

Click the Settings tab.

Select DMA if the item is not selected, and then click Confirm. Windows asks if you want to reboot, click Yes.

Enable Direct memory access in Windows 2000

Log on to Windows as an administrator (or a user with Administrator privileges).

Right-click the My Computer icon on the Windows desktop and choose Properties from the pop-up menu, and the System Properties window appears.

Click the Hardware tab, and then click Device Manager. The Device Manager window appears.

Double-click the IDE ATA/ATAPI controller to view the list of controllers.

Double-click the main IDE channel. The main IDE channel Properties window appears.

Click the Advanced Settings tab.

Select DMA, if the item is available from the transmission mode of device 0, the list

Click Confirm. Windows asks if you want to reboot, click Yes.

Enable memory direct access in Windows XP

Log on to Windows as an administrator (or a user with Administrator privileges).

Click the Start button, then right-click My Computer and select Properties from the pop-up menu, and the System Properties window appears.

Click the Hardware tab, and then click Device Manager, and the Device Manager window appears.

Double-click the IDE ATA/ATAPI controller to view the list of controllers.

Double-click the primary IDE channel and the main IDE channel Properties window appears.

Click the Advanced Settings tab.

Select DMA. If the item can be found from the list of transport modes in appliance 0.

Click "OK" you do not have to restart Windows.