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Where does the CMOS RAM receives its power when the computer is not turned on?

The CMOS is run off of a battery on the motherboard.


What component is necessary to save system settings whe you power off the computer?

CMOS battery


Where does the CMOS power come from when the computer is off?

The complementary metal–oxide–semiconductor (CMOS) power comes from the CMOS battery located on the motherboard. This battery powers the Basic Input Output System (BIOS) and stores the start-up config for the computer.


When you restart your computer the error message cmos setting wrong and cmos cheksum bad comes up?

Chances are that the CMOS Battery on the motherboard is dead and needs to be replaced. Without this battery, the computer can not remember the CMOS settings when the power is turned off.


Where does CMOS RAM get its power from when turned off?

CMOS RAM is Powered by a trickle of electricity from a small battery located on the motherboard or computer case, usually close to the firmware chip, so that when the computer is off, CMOS RAM still retains it's data.


What is the function of CMOS battery?

CMOS battery of your laptop maintains hard disk, time and date, and other drivers and configuration settings in a CMOS memory. You will see these tiny CMOS batteries connected directly to the laptop’s motherboard.


Why does a computer turn on if the CMOS battery is removed?

Removing the CMOS battery will not prevent the computer from turning on, it will only cause the information in the CMOS RAM to be lost (while the computer is turned off). When you turn on the computer after the CMOS battery has been removed, while it will turn on it will most likely not boot the OS correctly but will stop in the BIOS and require you to completely setup the CMOS parameters again before you can tell it to continue..


What Memory does not lose it contents when power is removed from the computer?

Read Only Memory (ROM) is not erased when you turn off your computer. There is a chip called the CMOS chip on your motherboard that holds all of the hardware information about your computer and other things as well such as the date and time. That information has to be accurate are your computer will not start properly. The motherboard has a small round battery called the CMOS battery it keeps about 5V of electricity always flowing even when you shut it off so that the data in the CMOS can be retained.ROM


How does CMOS battery works in personal computer?

All AT computers (80286 processor) or later require a small battery on the system board that provides power to the Complementary Metal Oxide Semiconductor (CMOS) chip, even while the computer is turned off. This chip contains information about the system configuration (e.g., hard disk type, floppy drive types, date and time, and the order in which the computer will look for bootable disks). The CMOS battery allows the CMOS to preserve these settings.


How does the computer keeps track of time even after it is turned off?

memory is not accessed when the computer is turned off. If the computer is in sleep mode, it retains power until resumed. If computer is in hibernate mode, contents of memory are written to disk first before power off, and reloaded on power on.


Are Cmos in a modern computer?

Yes CMOS is available in modern computer. CMOS definition: Complementary metal-oxide semiconductor, or CMOS, typically refers to a battery-powered memory chip in your computer that stores startup information. Your computer's basic input/output system (BIOS) uses this information when starting your computer. CMOS-related error messages could be caused by a faulty or discharged battery. The battery can become discharged if your computer has been turned off for a very long time. To resolve CMOS-related errors, check the information that came with your computer or contact your computer manufacturer. Because your CMOS settings are specific to your computer's hardware, Microsoft can't provide specific instructions for changing them.


How Does CMOS RAM save settings?

The CMOS chip in your computer is backed up by a battery (like a large watch battery) this only kicks in when the computer is switched off. Since the chip requires VERY little power to maintain its settings, the battery will keep the settings for a long time - sometimes years.