Question about HP Compaq dc5100 Small Form Factor PC Desktop

1 Answer

Reset power on password jumper - HP Compaq dc5100 Small Form Factor PC Desktop

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 570 Answers

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.
reset power on password jumper - piiisea_jump.jpgAs 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

Posted on May 29, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

My system is password locked and I cannot remember the bios password


You cannot bypass the password security yourself. If you could there would be no point in having password security on all our devices.

Jan 13, 2016 | Computers & Internet

1 Answer

How can I reset my system password?


Disabling a Forgotten Password

If you forget the system password, you will be unable to operate the system until disabling the password. Disabling the password involves going inside the computer and changing a jumper setting (twice) on the system board.
To disable a forgotten password, perform the following steps:
  1. Turn off the system and remove the cover.
  2. Move the jumper plug on jumper A to pins 2 and 3 to disable the password(s).
  3. Turn on the computer. Powering up the system with jumper A set to the disabled position erases existing password(s). Before assigning a new system password, you must reset jumper A to the enabled position.
  4. Turn off the computer.
  5. Place a jumper plug on pins 1 and 2 of jumper A to enable the password features.
  6. Replace the computer cover.

Dec 28, 2012 | Dell Latitude E4300 Notebook

2 Answers

How can you reset the cmos password


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.

Nov 11, 2010 | Dell OptiPlex 780 MT PC Desktop

1 Answer

How do you get the password off of the


There are two ways to reset the boot or the bios password:

1.By removing the CMOS battery

You have to shut down the computer , disconnect the power plug and open up the unit and locate the CMOS battery ( which usually looks like a coin) . Carefully lift the battery out of its socket and set it aside.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.
It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.

2. By using the motherboard jumper


Shut down your computer and disconnect the power plug. Identify where the jumpers are located. 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. 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.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.
It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.

For detailed instructions and snapshots u can check up this link :
http://www.askvg.com/how-to-reset-remove-bypass-a-bios-or-cmos-password/

Mar 15, 2010 | Computers & Internet

2 Answers

How can I reset password for Bios Phoenix? the problem is that i can't run windows also


Try this, this is called "Backdoor BIOS Passwords" (manufacturers use these passwords for testing and maintenance.)

Reported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX.

OR

Try removing your CMOS Battery. (Note that 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.)
Remove this battery along with the power cable from the power supply. Hold down the power button to fully discharge the system. Wait 2-3 minutes then reinstall the battery and plug in your system.

OR

Some motherboards have a 3 pin jumper by the battery. Lets say that the jumper is on pins 2 and 3. Remove the jumper while the machine is OFF and place onto pins 1 and 2. Power on your machine for a minute. (Note: Your system will not POST). Shutdown your machine and put the jumper back to pins 2 and 3. Power on your machine

-jwma

Jan 06, 2010 | Computers & Internet

1 Answer

Power-On Password reset and SVP


The supervisor (SVP) password is stored in a chip called 24RF08.It can not be reset by disconnecting the BIOS battery or shorting any jumper.

Nov 24, 2009 | IBM ThinkPad T43 Notebook

1 Answer

I was forgot my assus motherboard bios password can any body help? without open the cabinet give me solution


There is no solution with out getting in the cabinet and removing the CMOS battery or moving the CMOS jumper on the CMOS pins. Desktop computers have a password reset built onto their motherboards. This reset area has three pins with a jumper on two of the pins, when you need to reset the cmos (and get rid of a password) this jumper has to be moved over to the pin next to it and the computer powered up to reset the cmos, then the computer gets powered down and the jumper placed back in the normal position.

Nov 11, 2009 | Computers & Internet

2 Answers

How do i fixt it. it has crash and now asking for a pass word and i dont have it the screen is black


here are 2 password type first 1 is bios password if tell me about your bios password it prompt when u powerup follow procedure below

For that you need to reset factory defaults settings for bios.
For reset bios u have to open back side of your laptop then u find motherbord circuit there.
pull cmos cell on motherbord for 15 minute then it reset to defaults.
Also u can reset with jumper settigns read carefully on mother bord there is 1 jumper near cmos cell u read there " bios reset or clear"
It is on 1-2 position right now set it in 2-3 position then power up then all bios settings are reset.
then again set it in 1-2 its original position.
Then it not want password.

And if u tell about windows password
Then when you power up the computer press F8 key then enter in safe mode then wait until it prompt for user password

then enter in administrator then if u able to enter then reset your password.
But if u set and forgot default administrator password then u should need win xp recovery disk.

Jul 28, 2009 | Dell Dimension 3100 PC Desktop

1 Answer

MS 6378 bios Was crypted. Tell me about password reset! KYBRA


You can to reset password by jumper on motherboard his name CMOS CLEAR or CMOS RESET .
it plased near the 3 volt battery .
It look like 3 pins a 1 jumper on it.
reinstall for 2 second jumper to anover two pins from 2-3 to 1-2 or (from 1-2 to 2-3 ) and password will be cleared !!!
but the over settings will be cleared too.

P.S. if you can't find this jumper just to try remove the battery for 10 minutes and disconnect power cord from power supply unit, but it may be no useful.

Mar 23, 2009 | MSI MS-6378 Motherboard

6 Answers

Resetting admin password on setup.


In the model 280 Optiplex, remove the jumper, they have two pins only, turn on the computer, wait for 1 minute. The jumper is located close to the power plug, in the right side, you read PWD, theres is it, i did it and working fine...

Jan 13, 2009 | Dell Optiplex GX280 (99301) Motherboard

Not finding what you are looking for?
HP Compaq dc5100 Small Form Factor PC Desktop Logo

831 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Tony

Level 3 Expert

2600 Answers

Are you a HP Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...