Where is the cmos battery on acer extensa 5230

in the link. Change the CMOS Battery at the same time.

https://www.google.com/search?q=reset+password+for+Acer+Extensa+5230

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Maybe this will help:

https://www.ebay.com/itm/Pile-CMOS-rtc-bios-Battery-ACER-Extensa-5420/131853871437?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D41451%26meid%3Da62dc30b6a774755812aee3f2f007c71%26pid%3D100623%26rk%3D1%26rkt%3D1%26sd%3D182163397011&_trksid=p2047675.c100623.m-1

Replace an Acer Extensa CMOS Battery
CMOS batteries allow you to store basic settings on your laptop.
If you notice certain features on your computer do not operate correctly, such as the computer clock, you may have to replace your CMOS battery.
This battery sits on the interior portion of your machine and measures about the size of a dime.
If you have a screw driver and know how to work with your hands, you can replace the CMOS battery on your Acer Extensa computer.

Open the screen of your laptop until you can view your keyboard clearly.
Find the bar that consists of plastic on the upper portion of your keyboard.
Place your screwdriver on one end of this bar and slowly ease it up until you can grab its edge with your finger.


Pull the opposite side of the bar in the upward direction with your screwdriver.
Then, ease out the whole bar.

Take out the screws on the side portion of your keyboard.
Pull your laptop keyboard upward and put it on a soft surface such as a bed or pillow.

Take out the four screws from the steel plate, which covers the motherboard of your computer, and take off this plate.
This allows you to view the CMOS battery, which sits on the lower right portion of your motherboard.

Pull the CMOS battery up from the motherboard and take it off.
Insert a new CMOS battery, which you can buy at a local computer store.
Put the parts of your computer back in the same manner as you took them off.


http://www.insidemylaptop.com/replace-keyboard-acer-aspire-3600-3610-3620-3630-3640-3660-3680-laptop/

i hope it will helps.

This service manual might match your computer:

http://www.scribd.com/doc/6469636/acer-travelmate-47204320-extensa-46204220-biwa-service-manual-sgtm47204320book0724-factory-repair-maintenance

pull out the cmos battery as well as the battery, and leave it for 3 minutes. then put the reg. battery back in and boot it up. it should say password disabled. Turn it off and put the cmos battery back in, it should work now. leave positive feedback!

Hi, Please click on the below web link to access the service guide for the Extensa 500Tlaptop http://tim.id.au/laptops/acer/extensa%20500.pdf

To reset the BIOS read the information from this link.

In case of your Acer Extensa 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.

You should be able to remove the password from the CMOS setting.

Just select F1 at boot up and locate the password section once you are in the CMOS Setting then clear it .

Regards

the CMOS battery may see when and removed the key board on top of laptop and under cover of the battery you are looking for, careful to leave only the battery