How to Replace CMOS Battery in a Satellite
A CMOS battery is vital to computer functions, such as system settings and date and time functions. If a CMOS battery isn’t keeping charge properly it will cause your system to lose these settings and revert back to an earlier date and time. This can cause numerous problems with programs and utilities. Replacing a CMOS battery is something that you can easily do yourself without taking your computer to an expensive repair shop.
- Turn off and unplug the AC adapter from your computer. Turn the computer over and remove the main battery from its housing on the bottom.
- Remove the screws on the bottom of the laptop, starting with those that hold the memory card, wireless card, modem card and hard drive covers in place. Remove the covers and then disconnect the wireless and memory cards, along with the hard drive.
- Remove remaining screws, which are located on all fours corners of the computer and then lift the housing away from the keyboard. Disconnect keyboard and any remaining screws that were located under the keyboard. Lift the thin flexible cover to expose the motherboard.
- Locate the CMOS battery which is attached to the motherboard and remove it by either unclipping it from its housing or gently pulling it straight away from the two small wires that are holding it in place.
- Insert the new CMOS battery into place with the clip or the wires. Carefully reassemble your laptop making sure to properly replace the keyboard and all cards that were disconnected earlier. Reconnect the hard drive and then reboot your computer, making sure to set the date and time to the proper settings.