DMA problem

[Saduff]

First of all, I have 2 Primary and 2 Secondary IDE channels, but I've heard that I must have 1 Primary and 1 Secondary. I have a burner in my laptop as well and there's only 1 Primary and Secondary.. So.. is this a problem or is this supposed to be like that ?

The second Primary channel is in Ultra DMA, mode 5, but The secondary channels say not applicable.. but I've heard it has to say Ultra DMA, Mode 2 and my laptop has Ultra DMA, Mode 2 and my laptop burns fine, but my PC doesn't.

=== Scsi-Device-Map ===
DiskPeripheral : ST3320620AS atapi Port 0 ID 0 DMA: On
CdRomPeripheral : RB8514Q SUA396R atapi Port 4 ID 0 DMA: On
ArrayPeripheral : MARVELL Virtual Device 1.00 mv61xx Port 5 ID 25 DMA: Off
CdRomPeripheral : Optiarc DVD RW AD-7173A 1-01 mv61xx Port 5 ID 4 DMA: Off
CdRomPeripheral : RB8514Q SUA396R 1.0 aqi2td2r Port 6 ID 0 DMA: Off

My burner is Optiarc DVD RW AD-7173A.

How can I enable DMA for my secondary IDE channel and are there supposed to be 2 Primary and 2 Secondary IDE channels?

[Kerry56]

On modern systems you can get more than one Primary and one Secondary IDE channels showing up in Device Manager. My Intel chipset board has only two IDE connections available, yet I have 3 Primary and 3 Secondary channels in Device Manager.

Have you looked through this thread on enabling DMA? http://club.cdfreaks.com/f61/troubleshooting-enabling-checking-dma-windows-vista-xp-2000-me-9x-101616/

[Saduff]

Thanks… now I will see if I can get the DMA enabled…

[Saduff]

Ok… but my secondary IDE channels say ‘not applicable’ not PIO mode… so is this still a DMA problem or is there something else ? I’ve read that when it says not applicable, then there is no device connected to that port… but I am sure I have a burner connected to the secondary IDE channel.

[Kerry56]

Did you try the vbs script on that page I sent you to?

I also found a guide that shows how to change the registry settings if you are confident about doing that sort of thing manually. Editing the registry can be dangerous, so best to be careful on what you change. http://winhlp.com/node/10

This does sound like a dma problem.

One other possibility is to use DVDFab Platinum reset dma tool. You can download the free trial of DVDFab and it will automatically search for dma status of your drive when you start up the program. If it finds that your drive is in PIO mode, it will give you a button to click to enable dma for the drive. http://www.dvdfab.com/

[Saduff]

Thank You! I’ll give it a try…

Edit: Yes, I tried that vbs script, but it said “No resettable ATA with windows drivers found. Nothing Changed.”