should be 0x1FE00 but this has to be done when setting up the partitions I beleive. Also when you have put the value in make sure to hit enter as i forgot to do that on several occasions and it would revert back to the default.
Technically, you can validly change the value for the partition anytime.
The problem is, the setting affects writes. So, every file written to that partition while the value was incorrect (every single file, in this case) stands a chance of already being corrupt. So, basically, you're looking at a complete reinstall. Boo. =[
