DMA Transfer is set automatically in Windows XP and can be checked in the IDE Controllers in Device Manager. I have a problem with the Secondary Channel which is linked to my DVD Rom (master) and my CDRW (Slave).
Device 0 is showing "DMA if available" (the default setting) but the Current Transfer Mode is showing PIO Mode. Device 1 is ok and shows DMA Mode 2. I assume that Device 0 is the master and Device 1 is the Slave if this is correct then it is my DVD Rom Drive that is showing the PIO Mode of Transfer. Can anyone suggest the reason or a 'fix' to get this back to DMA Mode.