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Replacing cmos battery on acer 529atx - PC Desktops

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  • Faheem Safdar
    Faheem Safdar May 11, 2010

    Explain it clearly so i may help you. I think you want to replace it with new one. Am i right ?
    Well....in this case follow these steps
    You can easily plug out the old battery with your finger nail. After it take this battery to market and and according to it's specifications get a new one. Plug in to it's place on mother board by pressing it softly. Hope it works

    Thanks

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Well....in this case follow these steps
You can easily plug out the old battery with your finger nail. After it take this battery to market and and according to it's specifications get a new one. Plug in to it's place on mother board by pressing it softly. Hope it works

Thanks

Posted on Mar 29, 2008

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Hi dear

it's easy way to change your cmos battery, open your casing, see it besides bios. just take it, and change with new one


oke


cropp

Posted on Mar 29, 2008

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Cmos settings for acer aspire m5641


to reset the cmos you only need to take the small round battery off the board for a few minutes. if your laptop is not keeping time then you need a new battery on the board. ( you will find you cant get on websites when your laptop has the wrong time on as its a security risk ) to enter the bios ( which i would not if i didnt know what i was doing ) turn off laptop/press power button to turn it on/keep pressing F2 while its booting up ..but be careful in there

May 24, 2015 | Acer PC Desktops

3 Answers

Aspire x1800


Setting up a password on the Acer Aspire prevents others from accessing the computer without permission.

If the user is unable to supply the correct password at startup, the computer will lock the hardware and fail to boot.

This security measure is a useful feature, but it can create serious problems if you forget the password.
Basics

The Acer Aspire stores the password in a component called the complementary metal-oxide semiconductor.

This component is integrated into a random access memory chip embedded on the motherboard. The CMOS holds data that the basic input/output systema critical software utility that controls how the computer operates at startupaccesses when the computer boots.

If the BIOS detects that a password is registered in the CMOS, it will prevent the computer from booting until the user enters the password correctly.

Depending on which model of Acer Aspire you own, you may be able to clear the CMOS manually.

Contact Acer before attempting to clear the CMOS, as opening the computer without permission could void your warranty.

Desktop Models

Some Acer Aspire desktop models come with a jumper that is used to clear the password and other settings stored on the CMOS.

This jumper is located on the motherboard and is often found next to a label such as "JBIOS1" or "CLR_CMOS." To clear the CMOS using the jumpers, turn off the computer, disconnect the power cable and remove the case cover.

Remove the jumper shunt from pin 1 and pin 2; then place the shunt on pin 2 and pin 3. Return the shunt to its initial position after 10 to 15 seconds.

If the Aspire doesn't come with a jumper to reset the CMOS, the CMOS can be reset by removing the lithium coin-cell battery instead.

Removal is accomplished by pushing down on the tab securing the battery to the motherboard and lifting the battery out of its slot.

Leave the battery out for 24 hours, and then return it to its original position with the positive sign facing up.

Laptop Models

Resetting the CMOS password on an Acer Aspire laptop is much more difficult than resetting the password on a desktop.

Disassembly steps vary from model to model, but on most models, you'll have to take apart the computer to access the CMOS battery.

Don't take apart the notebook if you don't have experience disassembling PCs.

After turning off the computer and disconnecting the AC adapter, take out the battery (different from the CMOS battery).

All visible screws must then be removed from the bottom of the notebook.

Remove all components stored to their separate compartments on the base of the notebook.
Turn over and open the PC.

Lift up the switch cover and remove the screws securing the keyboard to the PC, if any are visible.
Remove the keyboard.

Remove the screws securing the monitor to the hinges, and then set the monitor aside. Disconnect all visible cables connected to the motherboard; and then remove the screws from the top cover.

Remove the top cover to reveal the motherboard.
Locate and then remove the CMOS battery.

Leave it out of the notebook for 24 hours; then reinstall it and reassemble the Acer Aspire.

Other Options

If removing the CMOS battery fails to clear the password, or if you don't feel comfortable with the idea of opening your computer, you might be able to gain access to the computer using a backdoor password.

These special passwords were implemented to allow technicians to access locked computers. Not all models recognize backdoor passwords.

Most Acer Aspires use the Phoenix BIOS, and backdoor passwords for this BIOS include "BIOS," "CMOS," "phoenix" and "PHOENIX."

All of these passwords are case-sensitive.

May 04, 2014 | Acer Aspire PC Desktops

1 Answer

WHAT TYPE OF BATTERY


They are all the same size at least the last 200 i can remember were
SONY CR2032 Equivalent CMOS battery

Mar 05, 2014 | Acer Aspire T180-UA381B AMD Desktop PC -...

1 Answer

What Cmos battery do I need on my Acer Spire T180


Lithium battery statement
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with
the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to local regulations. Recycle if
possible.

Apr 01, 2013 | Acer Aspire RC500 PC Desktop

1 Answer

Will not power up


Hi,
You may need to replace the CMOS battery in your desktop but first:-
  • Check the power connections.
  • Disconnect power to the desktop.
  • Remove and re-fix the hard disk.
  • Remove the CMOS battery and connect power without it.
  • Now power it up.
  • Your desktop may run without the CMOS battery,[untill you replace] but you will be forced to re-set the date and time everytime you start it.

Hope this helps.Thanks!
Please rate this free answer.

Oct 18, 2011 | Acer Aspire™ T180 PC Desktop

1 Answer

How do you get the CMOS back on the Acer Aspire M1640


If you can enter the BIOS, by pushing either F2 or the Delete key after starting up the computer and seeing the first splash screen, you can reset the BIOS to factory settings. If you cannot enter the bios, in order to reset the CMOS, you must open the tower, look for the small CMOS battery (small watch style battery) and look for a set up 3 pins near the battery. There will be a jumper on on two of the pins. If you remove the watch battery and move the jumper over to the other two pins, replace the battery. Then remove the battery again and place the jumper back in the original location and replace the battery.

This process will reset the CMOS. You must also be sure to unplug the power cord from the tower before starting this process. Be sure the watch battery is not dead or the settings will not hold. So, if you're not sure, replace the watch battery.

If you found this information helpful, please remember to leave positive feedback.

Brian

Feb 05, 2011 | Acer Aspire M1640 Refurbished Intel...

1 Answer

I need to replace the cmos battery on my acer aspire 5630,


if you remove cmos batt. then the default bios is loaded....you can find it on the mother board a round shape battery..

Jan 17, 2009 | Acer Aspire™ T180 PC Desktop

1 Answer

Doesn't boot up


I think you cmos battery is dying... try to replace it.. and configure your cmos bios at exact date and time...

Mar 14, 2008 | Acer Aspire™ T180 PC Desktop

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Acer aspire e500 won't turn on


Check that all the power supply units are switched on( Wall Plug, UPS, CPU), If all is ok and the problem exists, replace the CMOS battery.( if the sys works replace your CMOS Battery, configure the cmos settings also)

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