Service Guide

Hardware Installations and Upgrades
Intel® Workstation Board S5520SC Service Guide 31
6. Lift the battery from the socket.
Figure 20. Locating and Removing the CMOS Battery
7. Dispose of the battery according to local ordinance.
8. Remove the new battery from its package.
9. Being careful to observe the correct polarity, insert the battery into the battery socket. The “+” side of the
battery must face the lever side of the battery socket, towards the rear USB/NIC ports.
10. Reinstall and reconnect any parts you removed or disconnected to reach the processor sockets. See the
documentation that came with your chassis for instructions on installing chassis components.
11. Replace the chassis cover and reconnect the AC power cord. See the documentation that came with your
chassis for instructions on installing the cover.
12. Run the BIOS Setup utility to restore the configuration settings to the real-time clock (RTC).