Hi i am currently having problems findin the cmos battery for a dell insperon 5100 there is a power on password and i need it reset thank you in advance

One of these. Not so easy. Our Expert Larry will be a long shortly.

http://www.genuine-cmos-battery.com/dell-inspiron-5100-cmos-battery.html

SOLVED: Where is CMOS battery in Dell Inspiron 5100 - Fixya

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Dell 5100 cmos battery replacement ... The CMOS battery most likely is a button battery, probably a CR2032 lithium battery. The battery could be located on the ...
Nov. 19, 2019 · Uploaded by FastVideoTech
SOLVED: Dell 5100 cmos battery replacement - Fixya
1 answer

Hello, you can download this tool here:

http://www.cgsecurity.org/wiki/CmosPwd

Dell

The official method is to contact Dell Technical Support. Dell Technical Support will request the Service Tag and Express Service Code from the bottom of the Latitude. If the current user is not the original Latitude owner, Dell will transfer the used Latitude's registration from the original owner with only the Service Tag and Express Service Code from the tag on the laptop.

• Dell Inspiron 5100: eeprom 93lc46, password in scan code at 0x310
• Dell Inspiron 7500: eeprom 24c164
• Dell Inspiron 8100: eeprom 24c02
• Dell Latitude C600: eeprom 24c02, password in scan code at 0x00, 0x10 and 0x90
• Dell Latitude C610: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80 and 0x90
• Dell Latitude C640: eeprom 24c04, password in scan code at 0x100 and 0x180
• Dell Latitude CPI: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80
• Dell D600: eeprom 24c04, password in scan code at 0x110
• Dell Optiplex: Remove the PSWD jumper
• For most Dell Dimension desktops, the steps to reset a BIOS password and clear all CMOS settings are:
  • Locate the 3-pin CMOS password reset jumper on the system board.
  • Remove the jumper plug from pins 1 and 2.
  • Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
  • Replace the jumper plug on pins 1 and 2.

Try the backdoor password: Dell

The another method is: by Using the Motherboard Jumper: In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off, and remove the battery and power cord
( if it is a laptop ) before you continue.

Here is a picture how it looks like:



The default setting is:pin 1 to 2, to clear cmos: 2 to 3.

Best of luck :-)

Try the backdoor password Dell

With a PSWD Reset Jumper Step 1Open the access panel to the password reset jumper if your Dell laptop has one. Consult your manual for the access panel's location. Some access panels have a tab you slide, while others are held in place with a screw.
Step 2Pry the plastic cover off the reset jumper with your fingernail. The reset jumper is a small pin port labeled "PSWD" with three pins. Put the plastic back onto the jumper over pin 1 and 2 instead of 2 and 3. Wait 90 seconds.
Step 3Pry the plastic off the reset jumper again and place it back onto the number 2 and 3 pins. Turn the laptop on. Repeat step 2 if the password is still present. Leave the plastic clip on pins 1 and 2 for a longer duration than last time.

Without a PSWD Reset Jumper Step 1Locate the reserve battery, also known as the CMOS battery, if your Dell laptop is not equipped with a password reset jumper. The CMOS battery's location varies among Dell laptop models. Consult your manual for the battery's location on your specific Dell laptop model. Many Dell reserve batteries are located underneath the main laptop battery. Remove the main battery and look for a sticker under it with instructions on removing the secondary CMOS battery.
Step 2Remove your Dell's reserve battery per the instruction manual or sticker located under the main battery. Removing the reserve battery resets the laptop's BIOS password. Wait 90 seconds, then replace the reserve battery. Reconnect the main battery.
Step 3Press the "Power" button to turn the laptop on.

Here is some youtube video with your problem:

http://www.youtube.com/results?search_query=dell+bios+password+reset+laptop&oq=dell+bios+password+reset+laptop&gs_l=youtube.12...2937.2937.0.5179.1.1.0.0.0.0.44.44.1.1.0...0.0...1ac.2.rXrXigbVpXM


Try also to call dell support in your country
They will be glad to help you out.

Good luck

If you know the current password just boot the machine and look for what key to press to get into the Bios or Setup. There you can change it if you know the current password.

If you don't know the password, then you will need to remove the CMOS battery from the motherboard and let it sit for a couple of hours. This will cause the computer to clear memory of everything. Then replace the CMOS battery and start the machine. Unfortunately you might have to disassemble the laptop to get to the CMOS battery.

Dell Optiplex 780, user forgot BIOS master password (which is necessary to change the boot order to run BartPE from CD and do an image backup).

There is a jumper on the mainboard called PSWD1, which is set (shorted). Remove power cable from PC (CMOS battery can stay in place), open the lid. Remove jumper from PSWD1. Reconnect power, start the PC, hit F2 to enter BIOS. All passwords should be reset.

Leave BIOS, power off the PC, remove power cable. Reattach jumper to PSWD1, close lid, reattach power cable. Start PC. Enjoy.

Hi,

In the first place Dell will not give you a password to unlock computer unless you prove to them you bought the computer ...your address..and your date of purchase.

Try to reset the CMOS.

disconnect the computer from the mains supply, open the casing, remove the CMOS battery.

reset the CMOS by using the jumper, replace the jumper to its original position, put back the battery and start the system.
If It is NOT possible to reset a Bios password just by removing the cmos battery you will need professional assistance.
unlock the Dell password with Service tag termination in http://www.laptoprebirth.com

Thank you

Hi,

If you have loast the password, to reset the BIOS password you need to remove temporarily the CMOS battery , so to reset BIOS settings.

Some model may be using NV Ram, in that case removing the battery is not enough.

The battery is located on the lower side on the motherboard.

On many DELL models the battery can be accessed from the side of DVD slot, battery slot, or RAM slot, without disassemblying the laptop.

On some model you may need complete disassembly (eg. Dell Le series).

The battery looks like a couple of coin batteries wrapped in plastic.

Before disassemblying or removing covers, always unplug adapter and remove battery.

On Dell Inspiron 8500 the battery can be accessed from a side , after removing the primary battery.

I think Dell 8500 can be set to use NV Ram to store the password.
In this case the problem cannot be solved removing primary battery, then accessing and removing CMOS battery for few minutes.

If you still cannot reset you have two way out.

Disassemble completely and access the NVRAM microswitch, or contact Dell and get master password.

You can also try one of this standard Dell factory CMOS password:

ALFAROME
BIOSTAR
biostar
biosstar
CMOS
cmos
LKWPETER
lkwpeter
setup
SETUP
Syxz
Wodj
Dell

Hi,
If you cannot access the machine after if has been powered up, it is still possible to get past the BIOS password. The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.
On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is. If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.
If all else fails, you may have to clear the BIOS password by resetting the RTC (Real Time Clock) IC (Integrated Circuit) on your motherboard.
The BIOS password may be cleared from a Dell Optiplex by removing the password jumper (PSWD) from the motherboard.
The location of the password jumper on a Dell Optiplex motherboard can be found by reviewing the Optiplex User Guides.
For most Dell Optiplex desktops, the steps to reset a BIOS password and clear all CMOS settings are:

• Locate the 3-pin CMOS password reset jumper on the system board.
• Remove the jumper plug from pins 1 and 2.
• Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
• Replace the jumper plug on pins 1 and 2.

Each Dell Inspiron has a master password which will clear the BIOS password. You can get this number by calling Dell Technical Support at (800)624-9896.
Dell Technical Support will request the Service Tag and Express Service Code from the bottom of your Inspiron.

Thank You,
Your Support Tech.
Manish Shirsikar,
Fixya.com

Hi Odek, You have to short the CMOS reset pins on the motherboard. You can find the location of these 2 or 3 pins on the motherboard manual. For Enisco's problem the monitor power cable is not properly earthed. You can either earthed it by connecting a wire from any conductive part of the monitor to a earth pin on the wall plug or something conductive near the monitor like a will sill. I would probable change the wall plug or the faulty power board. regards