Tip & How-To about Computers & Internet

Turn Direct Memory Access (DMA) on or off You must be logged on as an administrator to perform these steps. is usually turned on by default for devices such as CD or DVD drives that support DMA. However, you might need to turn on DMA manually if the device was improperly installed or if a system error occurred. Click to open Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Double-click IDE ATA/ATAPI controllers. Under IDE ATA/ATAPI controllers, for each item that has the word Channel as part of its label, right-click the item, and then click Properties. Click the Advanced Settings tab. Under Device Properties, select or clear the Enable DMA check box, and then click OK.

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Regarding Direct Memory Access

Your disk is probably operating in slow PIO - you can reset it to DMA by reading this article

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Nov 30, 2009 | Microsoft Windows XP Home Edition

1 Answer


DMA is Direct Memory Access : http://en.wikipedia.org/wiki/Direct_memory_access

It should be automatically enabled, but if it is not there will be no damage. DMA simply speeds up access.

Dec 22, 2007 | Intel D101GGC Motherboard

2 Answers

want to know applications of DMA in real time

Good Morning
IT it a little "brige" to some sound aplications or routing signal to Printers or Sound Cards, but not for Network. Not good sometimes for Sound Cards, but you can play sometimes with settings and see what happend, you always can go back the DMA at previuos state, or simple, disable.

Nov 17, 2007 | Linare Desktop, AMD Sempron 2200,40 GB HDD...

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