BIOS jumper on the desktop board

The CMOS contains the current BIOS settings

1. Turn off the computer and disconnect the power cable from the electrical outlet.
2. Remove the computer cover.
3. Locate the 2-pin password connector (PSWD) on the system board.
4. Remove the 2-pin jumper plug.
5. Locate the 2-pin CMOS jumper (RTCRST) on the system board.
6. Move the 2-pin jumper plug from the password jumper to pins into the CMOS jumper.
7. Plug in AC power to the system and wait ten seconds for the CMOS to clear.
8. Move the 2-pin jumper plug back to the password jumper.
9. Replace the computer cover.
10. Connect your computer and devices to electrical outlets, and turn them on.

Location of the RTCRST Jumper will vary by platform and form factor. For more information about the jumper locations refer to the system service manuals located at www.dell.com/support/manuals

Hi, To remove Bios security password login in Bios then go to the security tab and remove the password. Or the mother board jumper reseting can remove the password of the Bios without Bios login.

I believe that you need to set up the CMOS jumpers inside the main circuit board. For details click on this link (Click Me)
1. Look for 3 pin CMOS clip that says CLR CMOS on the mainboard 2. Take out the jumpers from 1 and 2 3. Put it in jumpers 2 and 3 and wait for 5 seconds 4. Put it back to jumpers 1 and 2

Figure 1. Schematic Diagram of Main Board Dimension 4700



Thank you for choosing Fixya

it can be a motherboard fault try resetting your bios. u can rreset bios by changing jumper settings near to the bios

Hello Friend, Follow the procedures in Before You Begin[Click here].

• Reset the current CMOS settings:
• Locate the 2-pin CMOS jumper (RTCRST) on the system board. See Jumper Locations [Click here]
• Remove the jumper plug from pin 1.
• Place the jumper plug on pins 1 and 2 and wait approximately five seconds.
• Replace the jumper plug on pin 1.
• Replace the computer cover.[Click here]

Hope this HELPED you...Thanks for Contacting FixYa...

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.

you mean the CMOS jumper? Reread my problem. Try again.

Assuming this is a desktop and when you say you can't access it because of a password, there is a solution.
-Unplug your computer
-Press the power button to release all power in the capacitors
-Open up the case
-Ground yourself by touching the metal case but not the board.
-Look towards the edge of the mother board, there is usually a button or a jumper (a set of two pins with a black piece of plastic across them)
-Press the button or remove the jumper
-Plug the computer in and start it

You should be able to access the BIOS now. Once you finish, replace the jumper if needed and you are clear. You might want to reset the password in the BIOS while you are in there though.

plz try by removing your hard drive

Most intel boards have jumpers that you have to move to get to the Bios settings ,their are 3 settings for the jumper
1-normal
2-config
3-recovery

No need to exsplain further