Here I recount my experience upgrading the original factory hard drive of the XBox to a WD Caviar Blue 500 GB Desktop (3.5") drive (WD5000AAKB).
Step 1: Parts / Tools
- A Torx screwdriver
- A Molex hard drive power cable "Y" splitter
- A new hard drive for installation
- A modded XBox
- Chimp XBox Hard Drive cloning software (available at "usual places")
A list of compatible hard drives can be found at the Xbox Hard Drive Compatibility Chart.
Details on soft-modding the Xbox can be found in my previous instructable, Original XBOX Softmodding.
Step 2: Open the case
Gently remove the top section of the Xbox case from the bottom.
Step 3: Prepare the hard drive for cloning
For my unit this meant placing the jumper on the set of pins second from the right (see photo).
Step 4: Prepare the system for hot-swap
Remove the molex power cable from the Xbox hard drive and attach the Y-splitter. Plug one of the other ends back into the Xbox hard drive and the other into the new hard drive.
Also loosen the IDE cable from the back of the DVD drive, making sure that it still remains attached.
Finally set the new hard drive into a position where the loosened IDE cable can be plugged in (on top of the DVD drive).