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Re: Location of CMOS Battery
The C-mos is green about a half inch wide and three inches long with two wires leading to a connector, and is generally located under the memory cover on the bottom of the machine. However, with this machine, it may be located under the bottom plastic cover in order to make room for the wireless card. It will be very close to the wireless card and memory.
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the cmos battery will most likely be a 3volt coin cell battery. it has a part number of CR2032. 90% of all pc's use this battery as the cmos battery and can be purchased just about anywhere. here are some pictures of the battery although it can be in a different location on your particular motherboard.
The CMOS battery is located underneath the keyboard of your Dell i5100.
If you're up to it, then try these simple steps:
- Open the lid to a 180 degree angle and using a very small Flat Screwdriver, pry the hinge cover on the right side. There's a small notch where you can pry it out.
- Check if the keyboard is being held by 2 screws. To loosen them, remove the battery and unscrew them from inside the battery bay.
- Carefully lift the keyboard in an angled position and check the ribbon or contact tape that connects the keyboard to the motherboard. Flip the keyboard towards you and see if you can reach the CMOS battery (usually covered by a blue plastic shield or protective cover. There's a pair of wire coming from it and the end is a small connector. You may remove the connector attached to the motherboard carefully to get the CMOS battery.
All you need to do is just to power off your system, remove the battery and unscrew all the screws that will lead you to your board.
When you are at the board, remove the cmos battery of your laptop and put back your laptop battery to power on the laptop for a while, power on without the cmos battery, your laptop will be reset and will not ask of the bios password anymore.
After it has been reset, you can now put back the cmos battery and couple everything back.
Your laptop will work without asking you bios password anymore.
You have to take the keyboard off. Gently pry the plastic strip that is between the top of the keyboard and hinges. Unscrew the (2 to 4) screws holding the keyboard down. Slide the keyboard up and out. You should see the battery with 2 wires going to the motherboard. Pull the battery connector off the board, take out the battery and wait for about 30 seconds. Replacing it is easy once you have it open.
pulling the battery will not help it is hard coded in CMOS you need to send it in or take it to a service center that can re flash it for you i do not suggest you re flash BIOS on your own because that could cause a bigger problem
The cmos on the Pavilion is going to be in one of three places, and will be one of two styles of battery. The cmos style will be either a large watch type battery about the size of a nickle located in a slot on the mother board, or in a yellow or greenish pouch with two wires leading to a connector, located under a cover on the bottom of the machine, or under the keyboard.
So wait, its asking for a BIOS/CMOS password? If so, one thing you can try to do is remove the CMOS battery. The battery is about the size of a nickel and can be found on the bottom of your laptop. You'll have to unscrew a few things to find it. Once you do, take extreme precaution when touching anything inside the computer. I would recommend getting an Anti-Static Wrist strap (sold at Best Buy). Once you locate the CMOS battery, take it out. Keep it out for about a minute and then put it back in and close everything back up. When you do this it usually resets the BIOS/CMOS password if there is one. Hope this helps!