QUOTE(drumstyk1 @ Feb 19 2007, 08:43 PM)

it sounds like you guys have already figured it out but i just formatted a 500gb hd the other day for a mod i was doing for a friend. I just used the defaults in xboxhdm and, if i remember correctly (i dont have it anymore), the F partition got maybe 135ish gb while the G partition got about 350gb. hope this helps...
-drum
Drumstyk1 if you didnt use xboxpartioner on the G partition once it gets over 250gb of data on it it will corrupt and you will lose the lot, it may look ok now but until it is formated with 32k clusters its a time bomb waiting to go off.
The limitations stated earlier in this post are correct, a single partition using standard clusters cant exceed 256Mb and retain its integrity.
By default using .67 sets F to 137GB and G takes the rest. That is set in the bios.