Sunday, June 14, 2009

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Enable Direct Memory Access (DMA) To Speed Up Windows Operation

Direct memory access (DMA) is a feature of modern computers and microprocessors that allows certain hardware subsystems within the computer to access system memory for reading and/or writing independently of the central processing unit. 
DMA is used for transferring data between the local memory and the main memory. Computers that have DMA channels can transfer data to and from devices with much less CPU overhead than computers without a DMA channel.

This is especially useful in real-time computing applications where not stalling behind concurrent operations is critical. Another and related application area is various forms of stream processing where it is essential to have data processing and transfer in parallel, in order to achieve sufficient throughput.
Now, know how to Enable Direct Memory Access (DMA) in order to speed up your system.
1. Right-click on My Computer, select Properties
2. Select the Hardware tab
3. Click the Device Manager button
4. Double-click IDE/ATAPI controllers
5. Double-click on the Primary IDE Channel
6. Click on the Advanced Settings tab (as shown in figure) The tab may or may not be available for each option. It is only available in Primary and Secondary Channels.
7. Set the Transfer Mode to "DMA if Available" both for Device 1 and 0
8. Click OK
9. Perform the same operation for other items in the list, if applicable.

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Haja Peer Mohamed H, Software Engineer by profession, Author, Founder and CEO of "bench3" you can connect with me on Twitter , Facebook and also onGoogle+

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