Hello.

First of all i would have to guess your utilizing NTFS.

Recently i ran into the same problem but with a twist that stump many
techies and gives me a migrane.

The same error occurs , and we changed the pws and the hard drive to a
nice new reliable seagate.

The chkdsk /f or /r trick works> However it 's temporary.

Like you the error never completely disapears, unless fat32 partition
is used.

Here is an observation. On many of these cases pressing reset a few
times (booting each time) tended to get things going again.

It's almost as if it was waiting to warm up... Creepy.

Now the Motherboard this partion dismounting was happening on is an
ASROCK k7s41 (cheapy).

Here is a clincher. One can restart over and over again with no
problems. However if the system is off for more than perhaps 2 minutes
the dismounting
error occurs when you restart. This also affects fat32 but blocks
access to files on the HD but does not dismount. Reset a few times and
it works perfectly once again.

Bios & drivers are up to date.

Now as for my theory, and don't laugh. I think that for windows caused
1516 partition errors are caused by not bing able to close all the
files on the HD before the system pws shuts down.

However it does not solve my powered off partition dismounting /hd
sector mis-reading problem.

I know that the follwoing hints are unconventional. However this ntfs
partion unmounting problem has been around for so long and no permanent
solution as yet.

Hint1:
This might help but it has to be tried by others as well.

Set your XP virtual memory (control panel /system/advanced) to a
smaller size, perhaps half of what it is. You can put it back after.

reboot xp , run the CMD and chkdsk /f /r through windows and then shut
down.

Re-boot again and then shut down.

Boot in PM8 and run a check to see if the error is back.

Hint2:

Try software that slows down windows shut down/restart and clears
page files, e.t.c.


Hint3: Check your Ram memory, even swap it out if necessary.


Hint4: disable; suspend or hibernate function (reboot) the rebeet in
pm8

Now point of fact.

I've never had this partition problem with IWILL or EPOX motherboards.

Which leads me to beleive that there is some functions that are going
too fast (windows shutting down too fast) and not completeing it's
writing the the HD.

I know that the Asus sk8v (s940) also has simular problmes , software
didn't have time to shut down before windows power off function
completed.


--
cobalt
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