Apple Power Macintosh 9600 - Manual (Page 101)

9 Disconnect the power cord from the back of the computer.
What you do next depends on whether you are installing a PCI expansion
card or memory.
10 If you are installing a PCI expansion card, go to the next section, “Installing a PCI
Expansion Card.” If you are installing memory, skip ahead to “Installing Memory” later in
this chapter.
Remove the power cord from the back of the computer.
101 Installing PCI Expansion Cards and Additional Memory