Apple Macintosh PowerBook 1400 - Manual (Page 170)

170 Appendix C
Making sure the RAM card is properly installed
Once you have completed the process for installing a RAM card, you can
check to make sure the additional RAM is now available on your computer.
Follow these steps:
1 Press the Power (on/off) key to turn your computer on.
2 Choose About This Macintosh from the Apple (
K
) menu.
3 Look at the amount of memory in your computer.
Your total memory (or total built-in memory, if you have virtual memory
turned on) should be the amount of built-in memory you noted before
installing the RAM card plus the amount of RAM in the card that you just
installed.
If the total memory number does not include the amount of RAM you
installed, review the steps for installing a RAM card to make sure you
installed the card correctly. If you need more help, see an Apple-authorized
dealer.
If you hear eight tones when the computer starts up, there may be a problem
with the RAM card. If you installed the RAM card in your computer yourself,
review the steps in this appendix to make sure you installed the card correctly.
If you purchased an expansion card from a third-party manufacturer, contact
the manufacturer for help.