CMOS battery getting hot.. bad jumper setting... help!!

This is usually a very short and sweet step to complete.
After you have changed the CMOS battery over to a new one all you should have to do is go into BIOS set the date, the time and the year. Save the settings in the BIOS, exit and restart the computer.
You have to set the date, time and year in the BIOS first then change it on the desktop.

The proper battery to use for CMOS is a C2023 coin cell battery.

Hope this helps

Hello Anon,

There are two possible reasons for the time and date to reset to the date of manufacture each time the machine is booted up.

Firstly:
The back-up battery is dead and needs replacing, usually it is a CR2032 but check what is stamped on the battery.


Secondly:
The bios reset jumper, on the motherboard, has been left in the "reset" position. Check the manual for your P.C., it will show you the location of the jumper and it's reset and normal positions.
If you don't have the manual, you might get it at:-


Regards,
Ron.

Following are the various ways to clear the CMOS or NVRAM on Optiplex systems:-

The computer must be disconnected from the electrical outlet to clear the CMOS setting.
Remove the computer cover.
Locate the CMOS battery on the system board.
Note the orientation of the battery, usually the plus side is up, and remove it.
Wait for 3 to 5 minutes for the CMOS to clear.
Replace the battery in the socket.
Replace the computer cover.
Plug the system and devices back into the electrical outlets and turn them on.
And Sec option jumper setting also available you can used:-
Turn off the computer and disconnect the power cable from the electrical outlet.
Remove the computer cover.
Locate the 3-pin CMOS jumper (RTCRST) on the system board.
Remove the jumper plug from pins 1 and 2.
Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
Replace the jumper plug on pins 1 and 2.
Close the computer cover.
And More Support see link:-
ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-755_user's%20guide_en-us.pdf

If more Technical Support Call.

I'm sorry to have to say this but your CMOS battery connection is bad. There is basically nothing you can do other than replace the whole motherboard if it is too much of a problem.

One of my many computers is like this as well. I'm lucky in that as long as I leave that computer plugged in (it doesn't need to be turned on just plugged in), the CMOS won't reset its self. If you aren't that lucky then I would seek out a replacement motherboard.

When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.
cmos battery 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. Although on some motherboards the Cmos battery is soldered in Hope this helps you

When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.

cmos battery 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. Although on some motherboards the Cmos battery is soldered in Hope this helps you

which operating system and what type of computer?

When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.

cmos battery 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. Although on some motherboards the Cmos battery is soldered in Hope this helps you

When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up

Press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there

also

The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.
hope this helps dont forget to vote!

good day,

your cmos battery is weak(low voltage) it does not save your bios settings every time you configure it or set it to default settings, it will always display cmos error every time you shutdown your PC, try replacing it with a new one, check the old battery model and buy it in your nearest computer shop, commonly used battery in Motherboards is CR2032 Lithium battery..

Hope this helps.

Sir MArkus

Did you swap the Cmos jumpers from 1-2 to 2-3 to clear Cmos before replacing battery and if so, did you return them to their original position (normal as opposed to clear cmos)? If the jumper is still in the clear Cmos position, the board will not boot.

Try changing the Cmos battery, it may appear to work but may not be suited to the board

Disconnect all drives except the hard drive, unplug usb and sound cables, if fitted, remove graphics card and either test with another one or use the onboard graphics.