Go to www.google.com and type "Intel UDMA Driver" in the search window. See
what you can find!

"Winnie" wrote in message
...
I dual-boot 2k & XP.
One old IBM 22GXP connected to controller on motherboard runs as Ultra DMA
Mode in Windows 2000, but as PIO in XP.
440BX2 chipset Micron, Intel 82371AB/EB PCI Bus Master IDE controller,
latest (HA HA) BIOS.
ACPI Auto Detection both OS's, greyed (can't change).
How to get UDMA in XP?
TIA, Winnie