How do you take off the back of the Acer 6460 and change the Cmos battery?

James, if you don't know your password, or it isnt' taking it, you will have to removed the CMOS battery. This looks like a watch battery. Remove the screws from the bottom of the case and then lift up and remove cover. Carefully remove the hard drive and memory modules by spreading the latches on the side and gently unseating the memory. Place the components on an anti-static sheet. Turn the computer over and remove the keyboard from your system. Remove the small, round CMOS battery from the motherboard. Leave it out for 60 seconds and then put it back in. Reassemble.

All laptops have a CMOS, or "Complementary Metal Oxide Semiconductor," battery.
The main purpose for the CMOS battery is to keep the system time, date and BIOS settings even if the computer is turned off or the main battery dies.
Individual Acer Aspire laptop models differ somewhat, but the general steps are the same when replacing a dead CMOS battery.Preparation

Read through the owner's manual for your particular Acer Aspire laptop to determine what kind of CMOS battery you need.
Purchase the battery through Acer or a local or online computer parts dealer.
Turn the laptop off and unplug it.
Also unplug any external hard drives, cameras or other external devices.
Turn the laptop over (bottom facing up), then touch something metal to remove static charge.
Removal
Remove the Phillips screws that secure the motherboard cover (refer to your owner's manual if necessary), then release the cover from the clips on the bottom of the plastic casing.
Lay the cover aside, then locate the CMOS battery cable on the right side of the motherboard. Unplug the cable, then remove the battery.
Installation
Plug the new CMOS battery cable into the motherboard.
Slide the battery partially under the laptop casing to hold it in place, then align the cover with the slots on the bottom of the laptop housing.
Replace the screws, then turn the laptop back over.
Settings
Plug the laptop in and turn it on.
Enter your BIOS (usually by pressing "F1," "F2," F10" or the "Delete" key) before the operating system loads.
Follow the BIOS prompts or refer to your Acer Aspire owner's manual to reset your time, date and desired system settings.
BIOS Reset
Any time the CMOS battery is unplugged for more than a few seconds, your BIOS will be reset to the default manufacturer settings.
If you make any changes to the BIOS that cause problems with your Acer Aspire, unplug the CMOS battery for 3-5 seconds to correct the problem.
http://support.acer.com/us/en/default.aspx


Acer aspire laptop battery replacement
http://www.youtube.com/watch?v=mQTZ1AUR0uw

Acer Aspire cmos battery

Remove the Phillips screws that secure the motherboard cover (refer to your owner's manual if necessary), then release the cover from the clips on the bottom of the plastic casing.

Lay the cover aside, then locate the CMOS battery cable on the right side of the motherboard. Unplug the cable, then remove the battery.

http://www.youtube.com/watch?v=cg_wvp1YdSI

laptop cmos battery

Hi there, this may work, try this.

Take off laptop battery, remove power cord, turn laptop upside down.
Just take off screws on the covers you see, which let you see HDD, Memory,Wireless card,.... ,
take off the cover or check on line for service manual for your specific model on how to remove the plastic cover/ covers, which is covering the CMOS battery which is some time wrapped up with yellow tape. Just remove the battery by holding on the white connector which attached to the motherboard with black and red wires. Gently pull from the motherboard.

Now without the CMOS battery, connect power cord and turn on the laptop, it should turn on. Now turn off , remove the power cord, check voltage on battery , it should measure very close to 3volt (2.5 to 3.0 volt), otherwise get a new one, connect the battery, put back covers, and now you set a new password.

Before you start

1) Read through the owner's manual for your particular Acer Aspire laptop to determine what kind of CMOS battery you need.

2) Purchase the battery through Acer or a local or online computer parts dealer.

3) Turn the laptop off and unplug it. Also unplug any external hard drives, cameras, or other external devices.

4) Turn the laptop over (bottom facing up), then touch something metal to remove static charge.

Removal of the CMOS battery

Remove the Phillips screws that secure the motherboard cover (refer to your owner's manual if necessary), then release the cover from the clips on the bottom of the plastic casing. Lay the cover aside then locate the CMOS battery cable on the right side of the motherboard. Unplug the cable then remove the battery.

The battery should look something like this

Plugging the new battery in
Plug the new CMOS battery cable into the motherboard. Slide the battery partially under the laptop casing (somewhere to hold it in place), then align the cover with the slots on the bottom of the laptop housing. Replace the screws then turn the laptop back over.

Finalizing
1) Turn the laptop on.
2)Enter your BIOS (usually by pressing the "Delete" key) before the operating system loads.
3) Follow the BIOS prompts or refer to your Acer Aspire owner's manual to reset your time, date and desired system settings.

Reason: Anytime the CMOS battery is unplugged for more than a few seconds your BIOS will be reset to the default manufacturer settings. If you make any changes to the BIOS that cause problems with your Acer Aspire, unplug the CMOS battery for 3 to 5 seconds to correct the problem.

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Thanks.

hello

first remove the power cord, then the battery.

go to this link and download the manual for the Acer notebook.. basically you have to remove the back cover , the one with most of the screws around it. Once you get the plastic cover off, you will see the one side of the mainboard, look for a coin shaped silver battery, remove the CMOS battery and replace with new one

in case yopu dont have the manual, link below can be downloaded -- but it will not show you how to remove the battery.



http://www.acer.ca/acer/service.do?LanguageISOCtxParam=en&miu10einu24.current.attN2B2F2EEF=3751&sp=page15e&ctx2.c2att1=27&miu10ekcond13.attN2B2F2EEF=3751&CountryISOCtxParam=CA&ctx1.att21k=1&CRC=719687231

The CMOS battery looks like a small circular disc
http://www.tccycling.com/misc/5672inside.jpg

Just remove the connector hold for 30 seconds and plug it back in. Thats all.

OK IT IS SOLDERED TO THE MOTHERBOARD you will have to take off the whole back cover not an easy task but not that hard be very carefull and remember where the screws came from they are not usually all the same size and there is a ribbon cable that goes to the lcd dont pinch bend or pull it at all remove the hard drive before you begin and take out the battery and leave it unplugged for about 2 hours

hey there, not sure if you can do this or not but it will clear your cmos. Boot up MS-DOS and enter the DEBUG program. Type the following commands: The following commands will clear CMOS:

-o 70 2e <CR>
-o 71 ff <CR>
-o 70 2f <CR>
-o 71 ff <CR>
It may be necessary to reboot the computer a couple of times to correct any CMOS and errors.