Sony PCV-L630 VAIO User Guide - Page 878

sockets. 5. Handle the DIMM only by the edges, and remove it from its anti-static package. 6. Locate the keys on the bottom edge of the DIMM. 7. Align the DIMM over the socket. To avoid damaging the DIMM socket, move the DIMM socket tabs slightly outward to relieve pressure. The DIMM should then click easily into place. 8. Firmly insert the bottom edge of the DIMM into the socket. 9. Press evenly against the DIMM's upper corners. The end latches snap into position automatically. 10. Reinstall any add-in cards or components you removed. 11. Replace the cover. Replacing the Lithium Battery After several years, when the lithium battery starts to weaken, the system settings stored in CMOS RAM, such as the date and time, may be wrong. When this occurs, you need to replace the lithium battery. To replace the lithium battery 1. Write down any changes you have made to the settings in the BIOS Setup utility. If you have not made any changes to the BIOS settings, proceed to step 2. 2. Shut down your computer and turn off all peripheral devices, such as your printer. Unplug your computer. 3. Remove the cover as described in Removing the Cover . 4. If necessary, remove any cables, add-in cards, or other components to access the lithium battery. 5. Remove the old battery, and install the new battery with the plus (+) side up. Page 878