Where are the back up batteries located

Remove A Cmos Battery From A Compaq V2000 Laptop

The Complementary Metal-Oxide Semiconductor (CMOS) in a computer is responsible for storing hardware settings and time on your computer. The CMOS is powered by a small battery and is able to store information whether your computer is turned on or off. While the standard CMOS battery lasts for up to ten years, you may need to replace your CMOS sooner than that. If you password your BIOS and forget the password or need to reset your configuration back to the default, you can remove the CMOS and re-insert or replace it.

Instructions
1. Unplug the computer from the wall outlet and unplug the AC adapter from the computer.

2. Turn your Compaq Presario V2000 face down and slide the battery release latch to the left to disengage the battery from its position. Remove the battery.

3. Unscrew the screws over the hard drive cover, which is located in the lower right corner of the laptop if your laptop is placed with the battery away from you. Lift the hard drive tab, located on the left side of the hard drive, and slide the hard drive to the left to remove it from the computer.

4. Unscrew the single screw located directly under the optical CD/DVD drive. Insert a very thin item, such as a paper clip or pin, into the hole located on the optical drive to open it. Slide your optical drive out of its tray to remove it.

5. Remove the two screws located on the switch cover, which is directly under the battery. Turn the computer right-side up and open it as wide as it will go. Use a flat tipped screwdriver to lift up the switch cover that is directly above the "F1," "F5," "F11" and "Insert" keys.

6. Unscrew the four screws that hold the keyboard in place. These screws are are located in the upper right corner of the computer under the switch cover that you just removed. Lift the keyboard up and slide it forward until it rests on the palm rest. Unplug the zif connector, which is located directly above the palm rest, to disconnect the keyboard. Lift the keyboard up and out of the laptop.

7. Turn the computer upside down again and remove the memory modules by unscrewing the two screws over the memory compartment located directly below the battery slot. Unclip the two clips located on each side of the memory module to release it from its slot and slide it out of the computer.

8. Unscrew the two screws on the PCI cover directly beneath the memory module. Disconnect the two wireless antennas above the card. Spread the two clips securing the mini PCI card into place and lift the card up and out at a 45-degree angle away from you.

9. Flip the laptop back up on its right side and disconnect the display cable located in the upper left corner above the keyboard area underneath the switch cover you removed earlier. Then remove the two pieces of tape in the upper right corner that hold the wireless antenna in place. Remove the two clips located beneath the tape pieces. Unscrew the two screws on the upper left corner and the two in the upper right corner that hold the display into place. Remove the display assembly.

10. Turn the computer back upside down and remove the remaining 19 screws. Lift the base enclosure straight up out of its place.

11. Locate the CMOS battery, a small circular object, and lift it up out of its place. Leave it out for five minutes and reinsert it to reset your settings. Re-assemble the computer without the battery and plug it into the wall.
Remove Cmos Battery From Compaq V2000 Laptop

removing cmos battery doesnt work no matter how long you leave cmos battery out been there done that , you have to locate cmos jumper on motherboard , remove main battery & memory cards , peel back clearish foil on motherboard near where memory cards install , should see jumper points on motherboard , take bread tie touch jumper contact leave main battery out stand up like book plug in power adapter , and turn on only until boot screen then shut-off , install memory card , remove jumper and try starting laptop , if it hasnt cleared password , remove memory cards and try jumping it again

• 
  Power down the computer by clicking the "Start" and "Shut Down" button. Allow the computer to turn off entirely and wait about 30 seconds. Unhook the AC adapter from the computer. Turn the computer over and locate the battery compartment near the display hinges. Push the latches away from each other to unlock the battery. Remove the battery from the laptop.
  
• 
  Locate the memory compartment found on the opposite end of the laptop's bottom. Unscrew and remove the single phillips-head screw using a precision screwdriver. Pry the metal door off the laptop using the screwdriver.
  

• 
  Locate the memory module. Directly under the module is a blue plastic sleeve connected to the mainboard with a single wire. Disconnect the wire and wait about 30 seconds. Reconnect the wire to the mainboard and replace the metal memory door. Secure the door to the laptop by tightening the phillips screw with the screwdriver.
  
  
• 
  Reinstall the laptop battery, inserting the tabs first and clicking downward. Plug the AC adapter back into the laptop. Flip the computer over and power on the system. Enter the BIOS and change the password if desired, or leave it blank for no password prompt.
  

Pull the thermostat loose from the wall so you can see the model number located on the back of device.
Google search model: xxxxcy .pdf
Or search for british gas thermostat .pdf
This will give you access to product manual.
Also check batteries located on back of unit. Install fresh batteries. Memories should be retained on the chip during battery change.
Add a comment with model number, and I will try to locate thermostat manual.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

1. • 1 Hold down the "End Call" button for several seconds to turn the phone off.
     
   • 2 Remove the battery cover. Turn the phone over and push the clamp on the backside of the unit. The cover should slide up easily; remove it and set it aside.
     
   • 3 Locate the memory card slot. It is located directly under the battery under a black cover.
     
   • 4 Pull out the black cover gently to reveal the memory card holder.
     
   • 5 Slide and press the memory card into place.
     
   • 6 Replace the black cover on top of the memory card by sliding it back over the card and pressing firmly in place.
     
   • 7 Close the battery cover; place the cover on its grooves and push gently until you hear a click.
     
   • 8 Turn on the Motorola phone. If the memory card was installed correctly, you can save contacts and other data immediately.
     

If Try one or more of the following

Ready light does not turn on and the camera does not work.

• Turn on the camera (Turning on the camera).

• Install new batteries (Loading the battery) or charge rechargeable batteries.

• Turn camera off, then back on.

Ready light blinks green.

• Camera is operating normally.

Ready light blinks amber.

• Wait. Resume picture taking when the light stops blinking and turns green.

Ready light blinks red and camera turns off.

• Install new batteries (Loading the battery) or charge rechargeable batteries.

Ready light glows steady red.

• Transfer pictures to the computer (Transferring pictures with the USB cable), delete pictures from the camera (Deleting pictures/videos), switch image storage locations (), or insert a card with available memory (Using an optional SD/SDHC or MMC card).

• Wait. Resume picture taking when the light turns green.

• Change the image storage location to internal memory (), or use a different card.

Ready light is off or glows steady green.

• Camera is operating normally

Mostly in laptops the CMOS batery is located below the memory
so you need to open the memory door and take the memory strips out so that the CMOS battery will be visible

Try removing the backup battery for the bios and the main battery. The bios battery is a small little lithium battery usually located under the memory access panel. Killing the bios backup power causes it to lose its memory and go back to default, AKA No More Password. If this does not work you must find the security eeprom located somewhere on the motherboard and short pin 3 to pin 6 with a paper clip and power up. This will set the security eeprom back to manufacturing mode and once again, no more password.
In the most extreme cases the eeprom actually has to be replaced, this only occurs on very high end units. If you have any questions feel free to contact me. Good luck.
George
Ps. you can find the location of the eeprom easy just google for your model laptops security eprom.

Hi,

You either need to add more physical ram to your computer or delete and make more room on your hard drive.

The memory card goes next to the battery. if you take the battery cover off and take off the battery then you will see a little slot located at the center of the phone on the back. you can only put the memory card in if the battery is off.