Clevo N250GU Service Manual page 33

Disassembly
5. Pull the latches to release the second module if necessary.
6. Insert a new module holding it at about a 30° angle and fit the connectors firmly into the memory slot.
7. The module will only fit one way as defined by its pin alignment. Make sure the module is seated as far into the slot
as it will go. DO NOT FORCE IT; it should fit without much pressure.
8. Replace the bottom case and the screws (see page 2 - 6 ) .
9. Restart the computer to allow the BIOS to register the new memory configuration as it starts up.
Removing the System Memory (RAM) 2 - 9