Lenovo 3000 V200 - Manual (Page 42)

12. Reinstall the battery.
13. Turn the computer over again, and reconnect the ac adapter and cables to
the computer.
To make sure that the SO-DIMM is installed correctly, do as follows:
1. Turn the computer on.
2. While the initial screen is displayed, press F1. The BIOS Utility screen
opens. The ″Memory″ item shows the amount of memory you can utilize.
Replacing memory
32 Lenovo 3000 V200 Service and Troubleshooting Guide