It is on the motherboard on the bottom side of where the CD drive is located, on the right to the edge closest to the user. You have to strip down the computer. It is a small wafer about the size of the tip of your little finger. There are two prongs from the battery to the motherborad. It is covered by a translucent piece of yellow plastic stick on. It is soilderd to the board.
I removed the battery, ran two wire into the modem bay, and reattached it there for ease of maintenance. I can access it easily from there as needed.
If your question is prompted by a need to reset the bios password, battery removal is not the solution.
No, removing the bios battery on a laptop will not reset bios settings.
Only if the BIOS battery is flat or out of circuit.
The function of a bios battery is basically to reset your bios if something goes wrong and you corrupt it. Bios batteries usually contain a little bit of information on them. Therefore, when you remove a bios battery, it goes back to default settings. **Note** removing a bios battery is usually a last resort to reset your bios. There are several other ways to reset your bios such as a jumper cable or (included in some never motherboards,) a reset bios switch.
The BIOS chip is located on the motherboard
how can i break bios password without remove cmos battery
You'll loose your BIOS settings and the computer won't be able to recognize some of the settings. If the battery goes dead, replace the battery, enter the BIOS settings and load the default, then do whatever is necessary under YOUR BIOS to recognize your hardware, then save the settings.
BIOS
BIOS is a program (stored in ROM), not a memory.However the BIOS uses a battery backed up RAM to store a variety of settings and parameters. This BIOS RAM is itself volatile (it can only store data when powered), however the battery backup provides power to this RAM when the main power of the computer is off (making it act as if it were nonvolatile). When this battery dies the BIOS RAM will lose its data and (after the battery is replaced) the machine may have to be reconfigured from scratch before the machine will startup correctly.
It powers the BIOS memory, keeping your bios settings active, and it powers the clock.
a battery in the computer
BIOS is a program (stored in ROM), not a memory.However the BIOS uses a battery backed up RAM to store a variety of settings and parameters. This BIOS RAM is itself volatile (it can only store data when powered), however the battery backup provides power to this RAM when the main power of the computer is off (making it act as if it were nonvolatile). When this battery dies the BIOS RAM will lose its data and (after the battery is replaced) the machine may have to be reconfigured from scratch before the machine will startup correctly.
It's the battery on a Motherboard/Similar COmputer Component that allows it to retain BIOS information