DMA vs PIO?

vbimport

#1

I seem to have some problems with my MB. When I used the primary IDE connector for my DVD writer, I had Auto detect in the BIOS for Type, DMA and PIO. But in WinXP, under Dev Mgr, Adv Settings, it said Current Transfer Mode: PIO. WHat could be worng, shouldn’t these drives use DMA ?
When I moved it to the Secondary IDE, I got UDMA-4.

Thanks, Roland,


#2

Under WinXP the DMA settings sometimes get messed up without you doing something wrong - you can set it up manually at UDMA mode again under the advanced settings tab that you already mentioned.


#3

Just installed my new NEC 3500. Went to check if DMA settings were on and the advanced tab is gone!! I went to Dev Manager, double clicked on IDE ATA/ATAPI controlers, selected secondary channel that my drive is on by itself, right clicked, selected properties and NO ADVANCED TAB!!
Anyone else have this problem? I ran the Nero System Info, that says DMA is on but why can’t I access it through the device manager?


#4

Sorry, should have mentioned I am running XP Pro SP1.


#5

Have you installed Intel’s Application Accelerator? If yes, just uninstall it and the advanced tab will reappear.


#6

Yes I do have Intel’s Application Accelerator. Thanks for the info!