Apple PowerBook G3 - Manual (Page 122)

Getting ready
You will need the RAM expansion card and a screwdriver with a Torx T-8
head. (Your card may come with a Torx T-8 screwdriver. If you need to
purchase a Torx T-8 screwdriver, you can probably find one at a hardware
or electronics supply store.)
IMPORTANT No other type of screwdriver can be used to install the RAM card
in your Macintosh PowerBook.
Make sure you are installing a RAM card made for your Macintosh PowerBook
computer. You can’t install a card made for another PowerBook model, such
as the 5300 series, in your computer. The RAM card must use low-profile
memory chips.
Some RAM cards made for PowerBook 3400 series computers may be
compatible with your PowerBook, but not all cards are compatible. Check
with the card’s vendor to be certain that the card is compatible with your
PowerBook computer. The RAM card available from Apple for PowerBook
3400 series computers is compatible with your PowerBook.
Connector Low-profile memory chips
(The number and position of the chips on your
RAM card may differ from those shown.)
122 Appendix C