 Upgrading RAM
Note: Before installing memory or a disk drive in the system; please remove the expansion bay battery, the AC adaptor or any other cables or devices connected to the computer.
The Apple PowerBook G4 400-500 MHz [Titanium, 2001 Model] has two RAM expansion slots that accommodate SDRAM DIMMs. The main memory of the system can be expanded using 64 MB , 128 MB, 256 MB and 512 MB SDRAM DIMM Modules, the system's main memory can be upgraded up to 1 GB [Giga-byte] maximum.
Accessing the Memory Expansion Sockets.
The RAM expansion sockets are stacked on top of each other in a dual socket on the system's main logic board. The memory expansion sockets can be accessed by a user by removing the keyboard as shown in the illustration.
The keyboard can be flipped 180 degrees by pulling the two latches toward the front of the computer.
The two latches are between the ESC key and the F1 key and between the F8and F9 keys. Once the latches have been released, the user can lift the keyboard up and turn it face down onto the front part of the case.[As shown below in the illustration]
 See Apple's Memory Installation Quicktime Movie
Apple's Instructions for replacing the bottom case
Apple's Instructions for replacing the keyboard
Apple's Instructions for replacing the hard drive
Upgrading the Disk Drive
 The internal hard disk drive of the PowerBook is accessible through the bottom of the computer's case.
To replace the hard disk drive in the PowerBook , the user needs to turn the computer over and remove the panel on the bottom, as shown in the illustration.
- After removing the panel, detach the flexible cable connector [Gently]
- Gently pull the drive out from the hard disk drive compartment. A tab is provided on the drive for pulling the drive out from the computer chassis.
- Once the drive is removed from the drive compartment, detach the flex or ribbon cable from the drive connector (use a small flat head screw driver.)
- Attach the flex cable connector to the new drive and install it back in the computer.
- Boot the computer from the CD-ROM with Mac OS after installing the new drive in the system. Use the Apple Drive Setup Disk Utility that comes with the Mac OS to "Initialize" the drive.
The drive should show up on the Mac Desktop..
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