Note: Before installing memory or disk drive in the system; please remove the expansion bay battery, the AC adaptor or any other cables or devices connected to the computer.

Apple PowerBook G3 400 - 500 MHz [Pismo w/FireWire] models These Apple models share similar physical processor daughter board assembly architecture, carrying memory expansion sockets for the main memory expansion of the system. The processor board has two memory slots; one on the top of the processor board and one under the processor card. This processor daughter card carrying two memory slots is connected or mounted via connectors to the logic board of the system. This processor board is also enclosed in a cage or by a metallic fence and covered with a cover plate serving as a heat shield for the heat dissipated by the system's processor. Note: The memory modules for the PowerBook G3 400-500 Mhz [Pismo w/ FireWire Port models are electrically different than earlier PowerBook G3 [Wallstreet or lombard models]. Although they share similar physical architecture, they have different memory specifications. You should order memory for the model of the computer you wish to upgrade.

Apple PowerBook G3 [400 - 500 MHz] [Pismo w/FireWire] models assembly illustration is shown flipping the keyboard and removing the top cover plate [heat shield]. To install the memory module in the top slot; you not need to remove the processor daughter card from the logic board. To install the memory module in the bottom slot the processor daughter card needs to be removed. Illustrations below show ... 1) How the processor Card appears in the computer. 2) The latter illustration shows the steps needed to remove and attach the card to the logic board.

NOTE: These installation notes and illustrations are only intended to help users to understand the memory architecture of the system and the level of expertise required in upgrading the system. 216.235.114.160 does not take any responsibility or liability in case of damage done to the computer by following these steps or procedures mentioned or illustrated. The installation notes, illustrations and steps presented here are solely for reference purpose only. TrasnIntl.com does not recommend, instruct, suggest or urge users to follow these guide lines to upgrade their computer. Continue to Next Page

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