How to switch dma mode
The IDE-devices can operate in DMA mode - Direct access to the memory and the PIO - software IO, when communication is performed by the CPU. In PIO mode, the system runs much slower.
Instruction how to switch the mode dma
mode is set in the BIOS. After turning the computer on the monitor wait until the prompt to enter the Setup: "Press Delete to setup". BIOS developer can assign a different key, as a rule, F2, F9 or F10. In the BIOS menu, scroll to the description of IDE-arrangements. Set the DMA mode. Press F10, to exit and save the settings. Answer "Y" to the question of the system.
After Windows starts, use a combination of Win + R and type in devmgmt.msc to call the "Device Manager." Expand the IDE node / ATAPI controllers. Call the context menu by clicking the right button on the device «IDE Primary Channel" and «IDE Secondary channel." Select "Properties" and navigate to the tab "Advanced Settings". In the line "Transfer Mode" select "the DMA, if available".
If you change the mode fails, click on the icon on the channel right mouse button and select the "Remove". To confirm, click OK and restart your computer. After restarting the IDE mode is automatically selected, or you will be able to install it manually.
If during operation under Windows when the hard disk or optical drive driver fix a lot of errors, the system automatically switches to the PIO. Try replacing the trail - perhaps he is the cause of failure. Download and install the driver recommended by the manufacturer for the controller IDE-arrangements.
Check the condition of the hard drive with special test programs, for example, or mhdd Victoria. If the tests show a large number of bad sectors, it is possible, you should take care of the preservation of information to other media.
You can disable error control in the registry. To do this, call the startup screen program combination Win + R and type in regedit. Find a branch HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesCdfs. Note ErrorControl key and the menu "Edit" click "Edit." Enter "0" and restart your computer.