win xp - attempt to write to read-only memory

[jebus0]

Hello,
My mainboard is a k7vma, and I upgraded from winme to winxp pro about a month ago. I occasionally get a blue screen of death error when copying files to a secondary hard drive installed. The error message is as follows:

"An attempt was made to write to read only memory ....
STOP: 0x000000BE (0xC66FF000, 0x1EA51161, 0xF769E9CC, 0x0000000B)"
(although the first three hex values in the brackets are different each time)

In my event log, I always have the following two errors:
1)
AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. Please contact your system vendor
for technical assistance.
2)
AMLI: ACPI BIOS is attempting to write to an illegal IO port address (0xcf8), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. Please contact your system vendor for technical assistance.

When I tracked these down, the microsoft pages informed me to upgrade my BIOS, I am now running the latest version of this mainboard's bios (k7vma10e), but about 8 hours after flashing the bios, I got the same error again while trying to copy some files.

I'm out of ideas here, the stop error message suggests I disable BIOS memory options such as caching or shadowing, but which options are safe to disable? There's also a memory caching option on each of my hard drives when I check their properties through explorer, is this
the option I should disable? Is it possible that I need to re-install xp before the new bios settings can take effect?

Please let me know if anyone has had a similar problem and found a solution, or where I can keep looking, because this is really starting to annoy me a lot.

Thanks for any help
-s

 

[dinosnake]

You can trun off both shadowings if you wish - it will slow fown the computer but no damage will be done.

Memory caching should be just the OS caching reads and writes. Right now you may wish to turn it off - with it off writes will be committed to the disk immediately and with your stability problem it should lead to less data corruption.

I just looked at the I/O ranges and 0xcf8 seems to be in the I/O range for the PCI bus, listed in between ranges for the IDE contoller - which means that either the WinXP drivers for the PCI bus or the IDE (which goes via PCI) are incorrect or need updating. This was common - new boards came with their owm IDE & PCI drivers to match.

See if the motherboard manufacturer has updates or patches for either of those subsystems. If so that should solve your problem. If not then the board manufacturer hasn't done it yet, or never will, and you'll have to use another OS to remain stable.

At least that what it looks like. You'll have to check your unit's specific I/O map for exact details. Your mileage may vary...