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Bios password problem on a hannstar j mv4 94v

My kid put a Bios password on a hannstar j mv4 94v motherboard and then forgot it

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You will need to get to the jumpers for bios to be able to reset the password or remove the password, this is easy with a desktop computer, but if you have a laptop but you think you guys can open the laptop and locate the bios or cmos jumpers then go ahead.
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On the computer motherboard locate the BIOS clear / password jumper or dipswitch and change its position. Once this jumper has been changed, turn on the computer and the password should be cleared. Once cleared, turn the computer off and return the jumper or dipswitch to its original position.

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The location of the jumpers or dipswitches may vary; however, here are general locations where these jumpers / dipswitch may be located.

  1. On the edge of the motherboard - Most jumpers are located on the side of the motherboard for easy accessibility, verify by looking at all visible edges of the motherboard.
  2. By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.
  3. By the processor - Some manufactures will place the jumpers by the processor of the computer. However, note that in some cases these jumpers will be to change the processor and not the password.
  4. Under the keyboard or bottom of laptop - If you are working on a laptop computer the location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
  5. Other visible location - While it is possible that the jumpers / dipswitches may not be in a visible location, most manufactures try to make things easier by placing the jumpers / dipswitches in another visible location.

Posted on Jun 04, 2010

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If you know how to remove the CMOS battery on the motherboard of your laptop this will solve your problem. 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.
Removing the battery will reset the CMOS information/data including the password.
Of course after you have done this you have to re-enter the correct CMOS info in order for your laptop to function properly.


Good day.

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The BIOS default password is just blank, and it is not asked.

When you set a bios password, you are asked to enter a value, therefore if bios is asking the password, the password had been changed.

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Removing battery will reset bios and delete the password.
Unplug power cord before accessing the motherboard, and try not touching the motherboard with your finger.
Put battery back in place before restarting computer.

See also the following websites:

technibble.com/..
satyathakur.com/blog/

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ok on all desktops there is a jumper on the motherboard conecting 2 out of three pins and on the motherboard it says psswd. power off and unplug it then remove the door on the back where the ram goes ill bet thats where ull find it. take the jumper off and put it on the other pins. boot it up and password should be dissabled go int bios and make sure. u can leave it like this or turn off and replace the jumper. hope this helps.

P.S. if the jumper isnot by the ram check behind any other doors the laptop might have

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