Sorry to take so long to reply. Let me give you the full story...
I took my HD out of my old P3 system and installed it in the new one (see specs at end of post). I formatted the HD using fdisk and then later format c: in dos. I then installed Win98se (minimal install) and straight after installed WinXP PRO (complete over-write of Win98se). I then downloaded and installed 4.41 version of 4in1 drivers as well as all ide utilities from VIA`s website. I then defragged the disk. Still cannot get `DMA Mode 5' supported.
What I`ve checked:
Bios - enabbled dma support,SMART,large block etc..
Drivers - this I don`t understand! If I check the driver version under "VIA BUS MASTER IDE CONTROLLER" (under 4.41) it gives me a 2001 date 18 October 2001, 12:00:00 PM and is version 5.1.2600.120. That seems a bit old to me?
My system spec:
Dfi AD73 PRO (No Raid)
2x 128 Micron set to cas 2
Western digital 7200rpm ata100 30gig-master-no other devices on this channel
Creative 52x Infra
300w Power Supply
Tried 3 different cables (all 80pin ata100/ata133). But (if my English teacher saw that!!!) I think I have found the problem...BIOS!!! I flashed to an older bios and I now have full ata100 support. Only now I have to run @ 1xAGP `caude there is a problem with the Radeon 8500!! I E-mailed the ppl @ DFI and asked them to update the bios (worth a try) so maybe in about a year I`ll have a stable operation...probably around the same time I want to upgrade!!! Hahahaha....have to love computers!