Samsung NP-R20 Series Service Manual page 121

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11. References
2. Remove the WLAN (Lift the WLAN up sliding the WLAN hook left)
(5) Upgrading Memory
Removing the memory module
Before removing/replacing the memory module,turn the system off completely and
remove the battery.Do not replace the memory module when the system is in
Standby/Hibernate mode.
When using memory in dual channel,using memory of the same specification
(the same capacity and manufacturer) is recommended.
1. Using a screwdriver, open the memory module compartment cover on the bottom of the
computer.
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