HD falls back from DMA to PIO mode :-(

[Stefan Machwirth]

Hello,

in my WinXP (Professional, SP1) system there is a 40GB-Western Digital
HD as master on the primary IDE controller, and an 80GB-Western Digital
HD as slave. Both HDs are UDMA100-ready and are recognized so in the
system information.

Now I recognized that the slave HD, where I do some video and audio
work, falls back to PIO mode, if I have some load on it (for example
doing some big and fast data operations, and some additional work in
other software). Then I have to remove the primary IDE controller from
the device control, do a reboot and let the OS find this controller
again. Everything is fine then, both HDs are on DMA again.

My board is an ASUS A7N8X-Deluxe with Nvidia chipset. I also tried the
latest Nvidia IDE-replacement-drivers, but then the system locks after a
short time :-(

There is the swapfile on this HD, too, but it should'nt be used because
of the huge RAM in the system.

Some more ideas? I'm running off it.

Stefan

 

[S.Heenan]

in message

Hello,

in my WinXP (Professional, SP1) system there is a 40GB-Western Digital
HD as master on the primary IDE controller, and an 80GB-Western Digital
HD as slave. Both HDs are UDMA100-ready and are recognized so in the
system information.

Now I recognized that the slave HD, where I do some video and audio
work, falls back to PIO mode, if I have some load on it (for example
doing some big and fast data operations, and some additional work in
other software). Then I have to remove the primary IDE controller from
the device control, do a reboot and let the OS find this controller
again. Everything is fine then, both HDs are on DMA again.

My board is an ASUS A7N8X-Deluxe with Nvidia chipset. I also tried the
latest Nvidia IDE-replacement-drivers, but then the system locks after a
short time :-(

http://www.microsoft.com/whdc/device/storage/IDE-DMA.mspx

I'm using the same motherboard in one machine. Try an older driver like
2.45.
http://www.nvidia.com/object/nforce_udp_winxp_archive.html

 

[Alceryes]

There is the swapfile on this HD, too, but it should'nt be used because

of the huge RAM in the system.

Just to clarify...the swapfile will ALWAYS be used doesn't matter how much
RAM you have, it's just the nature of the beast.

If the NVIDIA drivers won't work that points to something wrong with the OS.
But just in case download and run the latest Powermax software and run a
full test on both drives.
http://www.softpedia.com/public/cat/13/8/13-8-19.shtml

 

[Len]

Have you tried using a different 80 connector cable. They do go bad...

FWIW, Len

 

[Stefan Machwirth]

S.Heenan haute folgendes in die Tasten:

I'm using the same motherboard in one machine. Try an older driver like
2.45.

3.x works fine.

Stefan