Apple PowerBook (3400 series) - Manual (Page 166)

166 Appendix C
12 If you are replacing a RAM card, lift the corner of the RAM card you are replacing to
remove it.
Be careful not to touch other parts of the computer’s interior when lifting the
card. Some parts may be hot if the battery has been charging or the computer
has recently been used.
If you’re replacing a RAM card, you’ll need to remove
the old one. Lift up on the RAM card in this corner
to remove it.
RAM card