You're all right, this thread is all part of a big conspiracy :roll:
"Exactly" how I changed the bufmemtype is like this: Using OS4, running Media Toolbox, I selected the hard drive I wished to edit. I clicked on "Edit Partitions and Filesystems". I selected the first partition and clicked on "Select Filesystem/Edit Details". I then changed the "bufmemtype" to 5. I then selected the remaining 2 partitions and changed the "bufmemtype" in the same way. I then saved the config and closed the program. I then rebooted into OS3.9 to have the lost chip mem back.
I think the problem I had can be traced back to setting up the partitions using OS4, not OS3.9. When I have setup partitions in the past using OS3.9 I haven't had any memory issues. However, prior to installing OS3.9 this time, the partitions were setup using OS4. It looks like OS4 by default sets the bufmemtype to a setting that is not ideal - that is to use chip mem for the buffers. I'd say that OS3.9 by default sets that bufmemtype to 5, which is fast memory, which is ideal...and hence there shouldn't be a problem and hence need to attempt to change the bufmemtype if partitions are setup under OS3.9.
I just had a look a minute ago in HDToolBox under OS3.9. I looked around and found no similar field to bufmemtype. Is it changeable using OS3.9? I don't know.
I have noticed the "bufmemtype" field in some mountlists before. I see no reason why this can't be edited to change the bufmemtype for a device with a mountlist.
I hope this helps...
