I forget my dell bois password I dont want to use jumper to reset it.is there any other way to clear or reset it? my computer is dell optiplex 760

How to Reset BIOS or Admin Password Dell Optiplex 760 780 745 755

Following are the various ways to clear the CMOS or NVRAM on Optiplex systems:-

The computer must be disconnected from the electrical outlet to clear the CMOS setting.
Remove the computer cover.
Locate the CMOS battery on the system board.
Note the orientation of the battery, usually the plus side is up, and remove it.
Wait for 3 to 5 minutes for the CMOS to clear.
Replace the battery in the socket.
Replace the computer cover.
Plug the system and devices back into the electrical outlets and turn them on.
And Sec option jumper setting also available you can used:-
Turn off the computer and disconnect the power cable from the electrical outlet.
Remove the computer cover.
Locate the 3-pin CMOS jumper (RTCRST) 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.
Close the computer cover.
And More Support see link:-
ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-755_user's%20guide_en-us.pdf

If more Technical Support Call.

If you want to create a new Basic Input/Output System (BIOS) password on a Dell Optiplex 745, reset the password. Resetting the password also applies if you want to remove an existing BIOS password. BIOS passwords are used to add an additional level of security to your machine. Without the correct BIOS password, your Dell Optiplex 745 will not complete the boot process. The password can be reset whether you know your current password or not.

Turn off your Dell Optiplex 745. Start the computer. Press "F2" the moment the Dell logo appears on the screen. You will only have two to three seconds to press the key. Enter your BIOS password. Navigate to the "Exit" screen. Select the "BIOS Password" setting. Enter your BIOS password and a new password if desired. Do not enter anything in the "New Password" box if you want to remove the BIOS password completely. Press "Enter" to save your password settings. Reset Forgotten Passwords Turn off your Dell Optiplex 745 and remove the power cord from the computer. Disconnect any external hardware and cables. Slide the release latch located on the back of your Optiplex 745. Lift the cover as you slide the latch. Hold the cover firmly and pivot it back on the hinges. Remove the cover from the hinges. Find the "PSWD" jumper on the motherboard. This is a two-pin jumper and should be clearly labeled. Use a flashlight and magnifying glass if you have trouble locating it. Remove the jumper from the motherboard. Replace the cover and slide it into place until the latch snaps into place. Reconnect the power cable and restart your computer. Shut down the computer after it has completely restarted. Disconnect all cables and remove the cover again. Replace the PSWD jumper. Replace the cover. Reconnect all cables and restart your computer.
b> Clearing forgotten passwords http://phubner.eng.ua.edu/Files/Optiplex 745/advfeat.htm - wp1117484

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.

Let the Password be as Dell because then whenever you would look at the notebook you will remeber the password.

You can reset bios password with 2 method.
(1) open back cover of laptop then find motherboard .Pull cmos cell from motherboard for 15 minutes then again put it in it's position .then it not ask for password.
(2)You can clear password with jumper settings find jumper on motherboard named clear cmos it has 3 pin .1-2-3
Put jumper in 2-3 position then again put it in 1-2 position then check .
Let me know if you need more assistance.
Thanks.

Dell latitude d600, am installing a replacement HDD, when I boot up laptop a screen comes up asking for password authentication system You cannot access the data on this computer without the correct password Please type in primary or administrator password and enter ????? How do I fix this ???? Tony

Hi,

The BIOS password may be cleared from a Dell Optiplex by removing the password jumper (PSWD) from the motherboard.
Can click the link below to see how its done or follow the steps below :--
http://support.dell.com/support/systemsinfo/documentation.aspx?c=us&l=en&s=gen&~subcat=87&~cat=12

Choose the desktop model and continue.

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.

Else can follow Optiplex User Guides.

Hope it helps !!
Thanks.

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, To access or enter motherboard BIOS settings, on powerup either F2 or Del. If you just want to remove the password in your Dell Optiplex > The BIOS password may be cleared by removing the password jumper (PSWD) on the motherboard. This will also clear all CMOS settings: Open your casing, on your motherboard. find the CMOS password reset jumper (3-pin) on the motherboard; Remove the jumper from pins 1 and 2 and put it on pins 2 and 3 for about 5 seconds. Replace back the jumper on pins 1 and 2. Hope this be of help/idea. Good luck and kind regards.