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Gday, have sp10 that needs cmos reset, unknown password

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  • robboniwell Oct 04, 2008

    Hi, problem is how to access battery or jumper. Where is it on my motherboard? Can it be accessed from the underneath of the machine or do I have to strip the whole thing down?

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You can reset by putting the jumper to 2-3 position or by removing the battery and starting the system

Posted on Oct 03, 2008

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Msi u180 unknown password


try removing the cmos battery on the laptop motherbord which will reset the laptop to factory defaults , if it is windows password u can format and reinstall windows .

Mar 15, 2014 | Motherboards

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Hello, My name is Vahe and I have got the following problem, I have forgot my BIOS password and I can't to turn on. Laptop model Toshiba satellite A200-13M. So I have got some solution to delete...


The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased. Hope this helps

Jun 02, 2011 | Toshiba (K000002020) Motherboard

1 Answer

I need to reset my cmos Password issues


Hi

For reset the cmos password remove the CMOS battery and restart your pc.

May 25, 2011 | HP (DA0LTLMB8G3) Motherboard

2 Answers

"Reset you're cmos/bios jumper to


HI,
No need to worry. There are many known ways to reset / remove / bypass the password:
  • By removing the CMOS battery
  • By using the motherboard jumper
  • By using MS DOS command
  • By using software
  • By using Backdoor BIOS password
Now I'll try to explain each method one by one:
A. By Removing the CMOS Battery:
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Almost all motherboards use a small coin sized CMOS battery to store all BIOS settings along with the password. To reset the password, unplug the PC, open the cabinet and remove the CMOS battery for approx. 15-30 minutes and then put it back. It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.
If it fails, then try to remove the battery for at least one hour.

B. By Using the Motherboard Jumper:
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 before opening the cabinet and resetting the jumper.

C. By Using MS DOS Command:
This method works only if you have access to the system when its turned on because this method requires MS DOS. Open Command Prompt from Programs menu and provide following commands one bye one:
debug
o 70 2E
o 71 FF
quit
NOTE: The first character in the above commands is "O" and not the number 0.
After providing the above commands, restart your system and it should reset the CMOS Settings along with the BIOS password.
If you are curious to know how it works? then let me explain the above commands:
In this method we are using the Debug tool of MS DOS. The "O" character present at first in these commands, outputs the values to IO ports. The number 70 and 71 are port numbers which are used to access CMOS memory. By providing FF value we are telling CMOS that there is an invalid checksum and it resets the CMOS settings as well as BIOS password.

Jan 08, 2011 | Intel DG31PR Motherboard

1 Answer

Access to motherboard of an old Dell Inspiron 5000 to remove unknown bios password. Thanks


To reset the BIOS read the information from this link.

In case of a laptop the easiest method would be using software from Hiren's Boot CD as it's pretty hard to open it up and reach for the CMOS battery or the jumper.

Dec 28, 2010 | Dell INSPIRON 5000E (969PG) Motherboard

1 Answer

I FORGET MY LAPTOP BIOS PASSWORD WHAT CAN I DO I HAVE HP COMPAQ 610


i,

To reset the bios password on your laptop, you will need to remove the cmos battery on your laptop for some minutes and insert back, the cmos battery is located on the motherboard of your laptop, once the cmos battery is removed from the motherboard for some minutes, the bios password will be reset, and that fix the problem.

Dec 27, 2010 | HP Compaq Motherboard

1 Answer

Cmos password


Check the jumper near the CMOS batter. Usually resetting the jumper will reset the password. Be careful, though. And, if not sure, please check with the motherboard manual or remove the CMOS batter for at least a couple of day. That should reset you BIOS password.

Jun 14, 2010 | Dell (E210882) Motherboard

3 Answers

Forgot password for bios setting


For this issue if you need to fix it with your self you need to follow the instruction from me. First you need to open your unit. Locate where the CMOS battery located.

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.

Oct 08, 2009 | MSI K8MM-V Motherboard

1 Answer

I need to clear the password, doesn't let me go to the settings


for that you need to put away cmos cell for 15 minutes
then it reset to defaults.
Also you cna reset password with jumper it is near cmos cell find on mother bord.
You cna read on bord "clear cmos" put jumper in 2-3 position then again put 1 -2 position.

Jun 22, 2009 | Motherboards

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