Dell Inspiron 3800 System Reference Manual page 140

Power Sources: Dell Inspiron 3800 System Reference
To remove a memory module, perform the following steps.
NOTICE: To avoid damaging the system board, remove the power cable, the battery, and the second battery (if
installed) before you service the computer.
1. Remove the memory module cover.
NOTICE: To avoid possible damage to the memory module from electrostatic discharge (ESD), ground yourself by touching
the unpainted metal surface of an I/O connector on the computer's back panel.
2. To release a memory module from its socket, carefully spread apart the inner tabs of the memory module socket just
far enough for the memory module to disengage from the socket (it should pop up slightly) (see
3. Lift the memory module out of its socket.
To install a memory module, perform the following steps:
NOTICE: If you only have one memory module, install it in the DIMM A socket. Memory modules are keyed, or
designed to fit into their sockets, in only one direction. The slots on the system board are notched so that the
memory module can be firmly seated only one way.
1. Align the memory module's edge connector with the slot in the center of the memory module socket.
2. With the module at a 45-degree angle, press the memory module's edge connector firmly into the memory module
socket.
3. Pivot the memory module down until it clicks into place.
If you do not hear a click as each end of the memory module snaps into the tabs, remove the memory module
and reinstall it
NOTE: The 192-megabyte (MB) memory modules are designed for either the socket labeled DIMM A or the socket
labeled DIMM B; however, they are not interchangeable. Be sure that the memory module is inserted with the
double-stacked memory chips facing you. A 192-MB memory module inserted with the double-stacked memory
chips facing down does not fit properly in the socket.
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1 DIMM A
2 DIMM B
3 Memory module sockets (2)
4 Inner tabs (2 per socket)
Figure 8).