For starters, you neglected the FORUM TIP which reads:
"Tip: If you are asking for help to troubleshoot a computer-related problem, please be sure to include all the necessary information (ie: operating system, model number, hardware, software, etc) that will help others identify your problem for a speedy resolution."
If you had supplied the make/models of motherboard or machine, I may have just told you to install the motherboard drivers and re-test. You also didn't tell all about the IDE CABLE TYPES, the jumper settings you used. Why the cable types and jumper settings matter is I fixed another one that had the master/slave jumpers on the 80 conductor cable by moving to cable select. This would be incorrect for 40 conductor cables, but right or wrong, cable select cleared it up on the 80 conductor cable.
Wish I could read more about the machine, cables, jumpers and BIOS version.
Bob
While using XP, what could potentially prohibit me from choosing DMA mode for a hard disk drive? When checking the primary and secondary channels, device 0 of both channels shows Ultra DMA Mode 2. However, device 1 of both channels shows DMA Mode if Available, and transfer mode as PIO.
Why can't I change device 1 to DMA Mode? Any ideas on what to look at?
Thanks.

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