Found the following comment in relation to fitting large drives ...
"This depends if you have either a softmod or a hardmod.
Softmod - Requires the hard drive image to be created using a special unix loader disc and a PC and then copied onto the new HDD and then install it into the XBOX.
Hardmod aka chip - Very easy, pop in your new drive and load a xbox mod disc (ie slayers evox installer)
To fit the drive takes about 15 mins in total and is very easy. head over to xbox scene for the guides"
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