Can Computer Run Without Cmos Battery. The CMOS battery is not there to provide power to the computer when it is in operation it is there to maintain a small amount of power to the CMOS when the computer is powered off and unplugged. You lose all of your radios presets and the clock resets when you unplug the battery.
With modern ATX motherboards where the power is switched from the motherboard probably nothing if the computer is plugged in If the motherboard is receiving absolutely no power if the power supply is unplugged or of its an old AT style motherboard where the power is switche. How long does a CMOS battery last in a laptop. What Happens If You Start Computer Without CMOS Battery.
In addition to keeping the clock running this is also used to turn off the computer.
Without the CMOS battery you would. Can my computer run without a cmos battery and if it can is it safe. You can Use a Laptop without the Battery There is no reason why a laptop wouldnt work just fine without the battery in. Also if the CMOS battery dies after 15 years it is probably defective.
