How to reset Acer Aspire 5600 cmos jumper - Acer Aspire 5630 Notebook

Hi,

There is no jumper to reset Bios for this type of laptop.
The simplest way is just to unsolder the CMOS battery.

I don't happen to have a picture of your system handy, but the battery looks very much like a quarter-size coin....

It should be pretty obvious, once you know what to look for.

Step 1:
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 system - a critical software utility that controls how the computer operates at startup - accesses 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 b> 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 b> 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.

If you cannot locate the jumper or there isn't a jumper to reset the BIOS (CMOS) back to the defaults then remove the BIOS battery for 20 mins. The battery charge on the BIOS will disappear and when you insert the BIOS battery back into the laptop the BIOS settings will be back to the factory defaults.
You need to go into the BIOS setting to set the Date and Time etc.

Try

http://support.acer.com/acerpanam/manuals/acer/0000/servicemanuals/S.G_Aspire_M5640_M3640M1640_BOOK_VerC.pdf


page 77

label CLR CMOS 3 pin type 1-2 clear 2-3 normal

If you've forgotten you BIOS password you can easy access the BIOS by reset the CMOS battery and jamper.

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.

YOu can reset bios password with 2 method.
(1) open back cover of laptop then find motherbord .Pull cmos cell from motherbord for 15 minutes then again put it in it's position .then it not ask for password.
(2)You can clear password with jumper settings find jumper on motherbord named clear cmos it has 3 pin .1-2-3
Put jumper in 2-3 position then again put it in 1-2 position then check .
Let me know if you need more assistance.
Thanks.

Check your system board(motherboard) for a CMOS reset jumper. usually located near the CMOS battery. change it over to the "reset" position. wait 5 mins boot pc. if it makes it to windows. shut down move the jumper back to the original position and try to boot.

You need to remove the cover over the fan assembly, and look over to the side toward the hard drive, and you should see the cmos battery, you don't need to take the machine apart, just reach in with a small screwdriver and keep the battery disconnected for five or so minutes, then after you put the cover back on, the password will be gone

A CMOS battery usually looks like a coin. It is a silver lithium battery, similar to wrist-watch battery and is usually placed near the BIOS chip.

Some motherboards - especially laptops - have a different kind of battery.
They are simply a capacitor on its own board attached to the motherboard.

So in order to clear the CMOS you need to remove the capacitor and re-solder it to the motherboard, which you don't want to do without some electrician skills.
Sorry...