HP d325 Hardware Reference Manual page 18

Hardware Upgrades
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2–8
5. Open both latches of the memory module socket 1, and insert the
memory module into the socket 2. Begin by installing a module
into the socket nearest the preinstalled module, and install the
modules following the numerical order of the sockets.
Installing a DIMM
A memory module can be installed in only one way. Match the notch
on the module with the tab on the memory socket.
6. Push the module down into the socket, ensuring that the module
is fully inserted and properly seated. Make sure the latches are in
the closed position 3.
7. Repeat steps 4 and 5 for any additional modules that you want to
install.
8. Complete the procedure described in the "Reassembling the
Computer" section of this chapter.
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