How Do You Replace A CMOS Battery On A Compaq Laptop?
The CMOS battery is the power source for a small computer chip on the laptop’s motherboard known as the complementary metal oxide semiconductor (CMOS). This chip retains information about the computer’s hardware configuration and other instructions known as the BIOS (basic input output settings). The CMOS battery supplies power to the chip to preserve this information, even when the computer is turned off. If your Compaq laptop’s CMOS battery is dead, you will be unable to boot the system and initiate the operating system. Replacing a CMOS battery may be a simple affair, or be a tedious and involved process, depending on the model of your Compaq laptop. In order to replace a Compaq laptop’s CMOS battery, you will have to access its motherboard. Remove the screws to detach the plastic shells from the bottom of the laptop. Undo two screws from the hard drive cover and three screws from the memory module cover. Raise the plastic pieces from the base and remove them. Dismount the hard driv
