NEED MANUAL TO LOCATE BATTERY AND JUMPERS - Dell Latitude D830 Laptop Computer PC Notebook

Read the manual here:
http://www.manualsdrive.com/results.php?lang=en&search=ADVENT%20K200#.UxYIQa3nbIU

You can skip the jumpers reset, by unplugging or removing the coin cell (CMOS) battery for at least 4 minutes. This works on all PC's whether laptops or desktops. This resets the NVRAM, just like the jumpers would do.

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you will need to get to the jumpers for bios to be able to reset the password or remove the password, this is easy with a desktop computer, but if you have a laptop but you think you guys can open the laptop and locate the bios or cmos jumpers then go ahead.
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On the computer motherboard locate the BIOS clear / password jumper or dipswitch and change its position. Once this jumper has been changed, turn on the computer and the password should be cleared. Once cleared, turn the computer off and return the jumper or dipswitch to its original position.

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The location of the jumpers or dipswitches may vary; however, here are general locations where these jumpers / dipswitch may be located.

1. On the edge of the motherboard - Most jumpers are located on the side of the motherboard for easy accessibility, verify by looking at all visible edges of the motherboard.
2. By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.
3. By the processor - Some manufactures will place the jumpers by the processor of the computer. However, note that in some cases these jumpers will be to change the processor and not the password.
4. Under the keyboard or bottom of laptop - If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
5. Other visible location - While it is possible that the jumpers / dipswitches may not be in a visible location, most manufactures try to make things easier by placing the jumpers / dipswitches in another visible location.

Motherboard Jumpers:
Some, but not all, motherboard manufacturers provide a set of three jumpers on their motherboards that provide you with the ability to clear the Bios/CMOS settings, thereby allowing them to be reset. For the most part this is used when the Bios/CMOS data becomes scrambled and you need to clear the Bios/CMOS in order to return the computer to a functional state. This same procedure, however, can be used to clear passwords from the Bios/CMOS setup. Typically a jumper will be found across pins #1 and #2 as the default position, and by shutting the computer down, unplugging the power cord and then moving the jumper so that it is across pins #2 and #3 will clear the Bios/CMOS settings.
Here's an example of a Supermicro PIIISEA motherboard.
As you can see from the picture, we have added two small red arrows. The arrow to the left denotes the location of the "Clear CMOS" jumpers, while the red arrow to the right denotes the location of the CMOS battery.
Here are the procedures if the jumpers are present on the motherboard:

• Locate, if possible, the instruction booklet for your motherboard. If you cannot locate the booklet, then user the motherboard references on this site to locate the manufacturer and see if a manual is available there. You may also want to closely examine the motherboard itself.
  
• Shut down your computer and disconnect the power plug.
  
• Now identify where the jumpers are located, then check the present pin location and the location of the jumper on those pins to determine their default location. As an example, the default location on the above motherboard is to have the jumper across pins #1 and #2. Write it down!
  
• Next, move the jumpers from the their default location (Example: from across pins #1 and #2 as above) and then place the jumper across pins #2 and #3.
  
• Leave the jumper in place for 20 to 30 seconds and then return it to its default location.
  
• Now plug the power cord back in and restart the computer.
  
• When the computer begins it's startup (boot) process, tap the DEL, F10 or F1 key, (whichever is appropriate for your computer) to get into the Bios/CMOS setup. If you need more detailed information as to how to get to the Bios/CMOS setup, follow this link. Bios Basics
  
• Once into the Bios/CMOS setup, look for a section or area to set the Bios/CMOS to its default settings. This will return the motherboard to either its basic or optimum settings depending upon the motherboard manufacturers settings. You will then need to verify certain settings, such a CPU and memory as well as hard drive type and size recognition. If you need more information regarding these settings, follow either of these links: For an AMI Bios or for an Award Bios.
  
• After making any final adjustments, save your settings and restart the computer. The Bios password should be gone and the Bios set to its optimum settings.

If the "Clear CMOS" jumpers are not present or not available:
The procedures for clearing a Bios/CMOS without jumpers is essentially the same as those given above when they are present, it just takes a little more effort.

• Shut down the computer and disconnect the power plug.
  
• Locate, if possible, the instruction booklet for your motherboard. If you cannot locate the booklet, then use the motherboard references on this site to locate the manufacturer and see if a manual is available there. You may also want to closely examine the motherboard itself.
  
• Now identify where the battery is located on the motherboard. It will be approximately 1/2 inch in diameter.
  
• Normally these batteries are held into place with one or more small clips over the face of the battery. Carefully lift the battery out of its socket and set it aside. Note: Some batteries are actually soldered to the motherboard, so take that into consideration and be careful.
  
• Leave the battery our of the computer for about 20 to 30 minutes and then return it to its socket.
  
• Now plug the power cord back in and restart the computer.
  
• When the computer begins it's startup (boot) process, tap the DEL, F10 or F1 key, (whichever is appropriate for your computer) to get into the Bios/CMOS setup. If you need more detailed information as to how to get to the Bios/CMOS setup, follow this link. Bios Basics
  

Question: How to clear an unknown BIOS password.
Answer: If you have mistakenly forgot or lost your BIOS password or you receive a password at boot that you do not know, you will need to clear the BIOS password by one of the below methods.
Precaution: When inside the computer please be sure of the potential of ESD.

• Try using generic BIOS passwords. A complete listing of these passwords can be found on document CH000451.
• There are utilities designed to help bypass BIOS passwords. An example of a great utility to decrypt / bypass BIOS passwords is the PC BIOS Security and Maintenance toolkit, which is available by clicking here.
• On the computer motherboard locate the BIOS clear / password jumper or dipswitch and change its position. Once this jumper has been changed, turn on the computer and the password should be cleared. Once cleared, turn the computer off and return the jumper or dipswitch to its original position.

The location of the jumpers or dipswitches may vary; however, here are general locations where these jumpers / dipswitch may be located.

1. On the edge of the motherboard - Most jumpers are located on the side of the motherboard for easy accessibility, verify by looking at all visible edges of the motherboard.
2. By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.
3. By the processor - Some manufactures will place the jumpers by the processor of the computer. However, note that in some cases these jumpers will be to change the processor and not the password.
4. Under the keyboard or bottom of laptop - If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
5. Other visible location - While it is possible that the jumpers / dipswitches may not be in a visible location, most manufactures try to make things easier by placing the jumpers / dipswitches in another visible location.

Additionally, when looking for the jumper / dipswitch the label of that switch can be anything; however, in most cases will be labeled CLEAR - CLEAR CMOS - JCMOS1 - CLR - CLRPWD - PASSWD - PASSWORD - PWD.

• On the computer motherboard locate and remove the CMOS battery for at least 10 minutes allowing the computer to lose its information. Note: this will not work on all computers.
• If your manufacturer has a bypass password this can be entered and allow you access to the BIOS and/or computer. Because of the security risk of a bypass password, generally only older computers will have this option. In addition, it is likely that this information will only be able to be obtained from the computer, motherboard or BIOS manufacturer.
• On the computer motherboard locate the CMOS solder beads and jump the solder beads to clear the password. The identification and location of these solder beads can vary and if not available in computer documentation is generally only obtainable through the computer manufacturer.

If one of the above solutions do not clear the password or you are unable to locate the jumpers or solder beads, it is recommended you contact the computer manufacturer or motherboard manufacturer for the steps on clearing the computer password.

does your laptop have a 25 pin serial port?

You can simply locate the battery on the motherboard and take it out for a few seconds! There are also jumpers to do this which will be described in your motherboards manual. Please make sure the power to your PC is off before attempting this

Hi:
You need the manual.
You also need to know what bios you have.

Take the battery out for 24 hours.

Most motherboards I have worked on will not discharge in only a half hour. You need a lot more time than that.

You can also clear the cmos on the jumpers. Be sure you know which jumpers, otherwise you may damage the board.
By shorting two of three jumpers, the cmos will be cleared to factory settings.
thanks,

Everything about the tc4200 can be found here http://h18000.www1.hp.com/products/quickspecs/12138_na/12138_na.HTML