{"id":16001,"date":"2023-04-28T11:09:42","date_gmt":"2023-04-28T01:09:42","guid":{"rendered":"https:\/\/batterytools.net\/?p=16001"},"modified":"2023-04-28T11:09:46","modified_gmt":"2023-04-28T01:09:46","slug":"will-dead-cmos-battery-prevent-boot","status":"publish","type":"post","link":"https:\/\/batterytools.net\/will-dead-cmos-battery-prevent-boot\/","title":{"rendered":"Will Dead CMOS Battery Prevent Boot?"},"content":{"rendered":"
The most frequent thing that people have pondered is, can dead CMOS battery prevent boot? Dead CMOS battery might cause malfunctions to some set up on your computer. This is because the battery helps to maintain data, including the time and date settings, which are stored in CMOS memory. Without power from a working CMOS battery, you won’t have this information to set the system clock (time and date) when the machine boots up. If you’re unsure if your CMOS battery needs replacing, there are some signs that can help determine whether or not it’s on its last legs.<\/p>\n
The CMOS (Complementary Metal-Oxide Semiconductor) battery powers a small memory chip on the motherboard. The data in this chip include system clock settings (time\/date), disk information, and various system configurations.<\/p>\n
The battery is usually located next to the memory chips on the motherboard<\/a>. It helps the computer remember time\/date even when it’s turned off or unplugged from the power source for a long time period. Usually, CMOS batteries<\/a> are either lithium coin cell type or silver oxide type button cells with wires attached to the motherboard.<\/p>\n When the CMOS battery<\/a> dies, the computer will not be able to save BIOS settings like date and time. A computer might fail to boot or freeze at the startup screen when you turn it on next time after that because your system clock is incorrect. The same thing happens when you change the BIOS settings but forget to backup your data before turning off the computer.<\/p>\n If this is not a critical issue for you, then simply replace the battery with a new one to resolve the problem<\/a>. If it’s an old computer that doesn’t have a CMOS battery<\/a> or you simply don’t have a spare battery, then you can also use BIOS jumper settings to clear CMOS.<\/p>\n Remove the computer cover and locate the dead or missing batteries on the motherboard. Follow instructions of your motherboard manual on how to replace it if necessary.<\/p>\n Your system might start having problems with startup errors and other issues as well, due in part to lack of power onboard during boot-up cycles (CMOS).<\/p>\n When the CMOS battery starts to lose power and strength, your computer’s BIOS loses data. This can cause an issue with how the computer of your operating system works on a daily basis. Some signs of this problem could include:<\/p>\n The machine turning off or not starting at all – Alongside errors about needing maintenance from time to appearing while booting up, Verbose messages tell you when there’s been corruption in memory.<\/p>\n In general, the dead CMOS battery<\/a> will not prevent your computer from booting. You just lose date and time.<\/p>\n You can reset the CMOS battery by removing it for about two minutes and put back. But make sure to shut down your computer before doing this. If not, you will lose the date again when restarting.<\/p>\nCan CMOS battery cause computer not start?<\/h2>\n
Will dead CMOS battery prevent boot?<\/h2>\n
Will a dead CMOS battery prevent power on?<\/h2>\n