PIO - DMA HD Woes

[Winnie]

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

[Crusty \(-: Old Bastard :-\)]

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
>
>

[Ed Chatlos]

I think you have to go to the Primary and secondary controller section of
device manager under IDE ATA/ATAPI controllers. Double click the primary and
secondary channels, Advanced settings, transfer mode. set to DMA if
available. you will get a warning, just click OK.



--
Ed Chatlos
NRA



"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
>
>

[Dan G]

Also you can remove the controller and reboot to force a re-detection. XP
will automatically revert to PIO if there are errors detected.


"Ed Chatlos" <edchat at bellsouth dot net> wrote in message
...
> I think you have to go to the Primary and secondary controller section of
> device manager under IDE ATA/ATAPI controllers. Double click the primary
and
> secondary channels, Advanced settings, transfer mode. set to DMA if
> available. you will get a warning, just click OK.
>
>
>
> --
> Ed Chatlos
> NRA
>
>
>
> "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
> >
> >
>
>

[Winnie]

Thanks Dan G, that worked!
Drive now at UDMA in both 2k & XP.
Transfer speeds 70 - 100% faster in XP, even beat 2k on one test!
Hope XP does not "detect errors" and slow it back down (knock on wood).
:-)

"Dan G" > wrote in message
...
> Also you can remove the controller and reboot to force a re-detection. XP
> will automatically revert to PIO if there are errors detected.
>
>
> "Ed Chatlos" <edchat at bellsouth dot net> wrote in message
> ...
> > I think you have to go to the Primary and secondary controller section
of
> > device manager under IDE ATA/ATAPI controllers. Double click the primary
> and
> > secondary channels, Advanced settings, transfer mode. set to DMA if
> > available. you will get a warning, just click OK.
> >
> >
> >
> > --
> > Ed Chatlos
> > NRA
> >
> >
> >
> > "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
> > >
> > >
> >
> >
>
>