I checked the device manager as you said and two of the channels have DMA
activated and the other two don't have the option on the advanced settings
tab.

[url]http://i7.tinypic.com/2l8vgk7.png[/url]
The ones i highlighted have the DMA checkbox checked.

I could also mention my computers specification:
Pentium 4 3.0 Ghz
1535 MB RAM
One 250 GB HDD and two 120 GB in RAID 0 on promise 378
asus p4p800-e mother board
ati radeon 9800 pro 128 MB
sound blaster audigy se

"Rock" wrote:
[color=blue]
> Check if the drive is in PIO mode instead of DMA. Start Orb | Type Device
> manager | Click on it (or if not running as an administrator right click and
> choose Run as Administrator). Expand the a hard drive controller section,
> double click on the Channel, and click the Advanced Settings tab. PIO or
> DMA?
>
> --
> Rock [MVP - User/Shell]
>
>[/color]