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Have WARNING-CMOS CHECKSUM INVALID -RUN SCU on my old laptop what to do???

I dont have cds to restart the progams,im computer illerate and need help please?

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Posted on Jan 02, 2017

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nai6378
  • 58 Answers

SOURCE: cmos checksum bad...usb current status detected system shut down 15 sec

Situation Remedies If you have encountered this error and would like to fix your computer, here are some remedies for each situation:
CMOS Battery Not Functioning Properly: If you suspect your CMOS battery is not functioning properly you can easily change it. Before changing your battery, reboot your computer to make sure that the error still exists. If it does, go into your CMOS and write down all of the settings. If all settings are lost, you can usually get them from your computer manufacturer. Now locate the battery and remove it, you might need to consult your computers manual or tech support to remove your battery. Take down the CMOS batteries information such as volt, size, etc. Once you have your new battery, you can replace it and reenter your CMOS settings. If your battery was the cause of the CMOS Checksum Bad Error, you should have remedied the problem.
Your BIOS has Been Updated (either by you or possibly a virus): If your BIOS has been updated recently, your CMOS settings may have become reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.
The Computer Was Shut Down Improperly: Sometimes when running MS Windows, if you shut down your laptop or desktop without first properly shutting down your operating system it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer before turning off the power. Usually this entails going into the Start Menu/ Turn Off Computer/ Shut Down. If you received the error, shut down the computer properly, if this is the cause of the error, the error message will not return.

Posted on May 11, 2008

shaggyrat
  • 1224 Answers

SOURCE: CMOS checksum bad 0085

the problem might lie in the fact that the mother board and cpu cannot be handled at the speed

or it requires the jumpers to be set by so that the cpu can be clocked properly if you got a mother board spec guide follow the guide for *********** board to set up 3.2

you might also have to set the bios to the cpu speed cause if mother board doesnt do jumpers no more the setting would be in bios
hit the delete key direct are power up this will take you to bios
its not the battery

Posted on Jun 05, 2008

  • 1 Answer

SOURCE: CMOS Error

You have bad Ram, Try them one at a time or get some different ram.

Posted on Dec 11, 2008

  • 1684 Answers

SOURCE: How to solve CMOS checksum and timer errors?

Hello,

Your backup battery is to weak to save the cmos data. Open your computer case and look for a round silver battery that looks like a quarter. Remove it and go to Radio Shack or a drug store battery section and get a replacement. The battery number is probably CR2032 but may be CR2025 or CR2016. insert the new battery and power up your computer, this time when you set the time and date the settings will stay when you turn it off.

I hope this helps, If so please rate our solution.

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Corporate Computer
www.ccl-la.com

Posted on Sep 12, 2009

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My questions are this i have a etower 400i3 pc i turn on and it reads this 106 cmos checksum bad is version 1.11 celeron (tm) 400 MHZ checking NV Ram.. 262144KB ok it reads 106cmos checksum bad press f1...


ok im gonna walk you through the steps to check this out

1. first off check your ram if you have two sticks pull one out and turn it on if it the same put that one back pull out other one if eather stops the error put it back in to make sure the error eather comes back or goes away if its still gone your good it was a bad seating of the ram or if it comes back it needs a new stick for the one left out if neather helps move to step two

2 Replace your CMOS batery it may have low voltage get one at the watch section of walmart . if that dont work move to three

3.Flash your bios with a new version easy way run windows update or if you cant get to windows down load the bios on a jumpdrive from another computer along with a lashing tool..

if that dont work you got a bad motherboard order new one
The end hope it helps at step one

Mar 06, 2015 | Computers & Internet

Tip

CMOS Checksum error


<b>Issue:</b><br /> CMOS Checksum Bad or CMOS Date/Time Not Set<br /> <br /> <img src="matrix12_1.jpg" /> <br /> <br /> <b>Cause:</b><br /> This issue is caused when the CMOS values are incorrect. This issue can occur because of any of the below possibilities.<br /> * Bad or old CMOS battery. <br /> * BIOS update<br /> <br /> <b>Workaround 1:</b><br /> 1. Disconnecting power from computer without shutting down computer.<br /> 2. Attempt to reboot the computer. If error still occurs after rebooting the computer enter CMOS setup and check all values, this includes verifying the time and date are correct. Once everything has been verified and/or changed make sure you save and exit CMOS setup. <br /> 3. If you have a Phoenix BIOS and have an option for 'Reset Configuration Data', set this value to 'Yes' and save and exit the CMOS. <br /> <p>4. If the computer was had the power disconnected while it was still running it is possible this could cause the CMOS to become corrupt. Ensure that the computer is ready to be shut off before turning off the computer. If you have a laptop computer ensure that the battery is charged before disconnecting the power connection. <br /> 5. If the CMOS values have become corrupted entering the values in CMOS setup and saving and exiting CMOS should resolve your issues.<br /> <p><b>Note:</b> If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be failing or already bad. Before considering replacing the CMOS battery try leaving your computer on for several days. <br /> <b>Workaround 2:</b><br /> <p>If you performed workaround 1 and the error occurs again after a complete power down (i..e. removing the power cord), the CMOS battery is likely bad. Most systems use a small coin style lithium battery. These often last 3-6 years, but at some point run out of juice and need to be replaced. For desktops, your system manual or motherboard manual should specify the type of battery and location on the motherboard. For laptops, it is often very difficult to access and may require a professional to replace it. To replace the battery on a desktop system:<br /> 1. Turn off the system and remove the power plug.<br /> 2. Remove the case or side panel to access the motherboard. <br /> 3. Look for a round silver coin cell, typically in a black holder.<br /> <br /> <br /> <img src="matrix12_0.jpg" /> <br /> 4. Remove the battery while noting which way the battery is located. You may need a small flat screwdriver to release the side clip. <br /> 5. Install the replacement battery with the same battery type, being careful to insert it in the same direction as the removed battery (or using the polarity marked on the holder or manual). <br /> 6. Reassemble the case and power. <br /> 7. Turn on the power. You will get the CMOS Checksum Bad error once more, but it should be the last time. Go into the BIOS setup and set the date and time, and any other options you prefer.<br /> <br /> <br /> Hope this will help...Your response is very much appreciated...

on Jan 24, 2011 | Computers & Internet

Tip

CMOS Checksum error


Issue:
CMOS Checksum Bad or CMOS Date/Time Not Set


ae4e911.jpg
Cause:
This issue is caused when the CMOS values are incorrect. This issue can occur because of any of the below possibilities.
* Bad or old CMOS battery.
* BIOS update.

Workaround 1:
1. Disconnecting power from computer without shutting down computer.
2. Attempt to reboot the computer. If error still occurs after rebooting the computer enter CMOS setup and check all values, this includes verifying the time and date are correct. Once everything has been verified and/or changed make sure you save and exit CMOS setup.
3. If you have a Phoenix BIOS and have an option for 'Reset Configuration Data', set this value to 'Yes' and save and exit the CMOS.
4. If the computer was had the power disconnected while it was still running it is possible this could cause the CMOS to become corrupt. Ensure that the computer is ready to be shut off before turning off the computer. If you have a laptop computer ensure that the battery is charged before disconnecting the power connection.
5. If the CMOS values have become corrupted entering the values in CMOS setup and saving and exiting CMOS should resolve your issues.
Note: If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be failing or already bad. Before considering replacing the CMOS battery try leaving your computer on for several days.
Workaround 2:
If you performed workaround 1 and the error occurs again after a complete power down (i..e. removing the power cord), the CMOS battery is likely bad. Most systems use a small coin style lithium battery. These often last 3-6 years, but at some point run out of juice and need to be replaced. For desktops, your system manual or motherboard manual should specify the type of battery and location on the motherboard. For laptops, it is often very difficult to access and may require a professional to replace it. To replace the battery on a desktop system:
1. Turn off the system and remove the power plug.
2. Remove the case or side panel to access the motherboard.
3. Look for a round silver coin cell, typically in a black holder.


06928b6.jpg
4. Remove the battery while noting which way the battery is located. You may need a small flat screwdriver to release the side clip.
5. Install the replacement battery with the same battery type, being careful to insert it in the same direction as the removed battery (or using the polarity marked on the holder or manual).
6. Reassemble the case and power.
7. Turn on the power. You will get the CMOS Checksum Bad error once more, but it should be the last time. Go into the BIOS setup and set the date and time, and any other options you prefer.

on May 30, 2010 | Computers & Internet

1 Answer

CMOS Checksum bad - BIOS won't save


Helllo you have maybe flashed the bios with a wrong one.

The acer homepage is here:

http://support.acer.com/product/default.aspx?modelId=481

ALWAYS download bios upgrade at the computers homepage !!!!

You need to contact the acer support in your country
they can help you with that.

Good luck

Oct 27, 2012 | Acer VM670G-UQ9550C model Veriton...

1 Answer

Main Bios Checksum Error!!!


Take notes of the BIOS settings of your computer for use after replacing the CMOS battery.

To access the computer's BIOS, restart your computer and press the "F 10" function key during the restarting process.


The BIOS configuration panel will then open and you can write the specific settings for your computer down to use for BIOS configuration after replacing the battery.


Turn off your computer and remove the power cable and if installed, battery.

Remove the computer hatch which will vary in method depending on the brand and model of computer you have.


On some motherboards cmos batteries are soldered in


Locate the CMOS battery on the motherboard.

The more popular model of CMOS battery used is annotated with a CR2032 label and is a round shaped button.


Firmly remove the CMOS battery from the motherboard.

Align the new CMOS battery with the positive side orientated towards you and insert into the mother board.


Restore the power cables to your computer and restart the PC.

During the restarting process, depress the "F10" function key to enter the BIOS setup screen.


Update the date in the BIOS and change the BIOS settings to match those you recorded in step one.


After the settings are updated, select the "Save and Quit" menu option and restart your computer to finish the CMOS battery replacement.


hope this helps




Sep 23, 2012 | Computers & Internet

1 Answer

Mainboard GA-G31-ES2C Warning: Backup BIOS checksum error BIOS Auto-Recovering...


If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
Save, Exit and re-boot and everything should then work.
During the boot process you will see on the screen to press delete to enter setup

Jul 23, 2011 | Gigabyte GA-G31M-ES2L Motherboard

1 Answer

AFTER SWITCHING ON, SCREEN STAYS FROZEN AFTER SAYING CMOS CHECKSUM ERROR- DEFAULTS LOADED


Hi there,

When starting your PC, the following error message is displayed:

CMOS wrong
CMOS MEMORY size WRONG
CMOS Checksum Bad
CMOS checksum error defaults loaded
Warning! CPU has been changed please re-enter cpu settings in the cmos setup and remember to save before quit!
You are prompted to:

Press F1 to resume
Press F2 to load default values and continue


This is due to the fact that the CMOS, which contain data related to the BIOS, has been reinitialized and that your PC has been reset to factory settings.

Solutions:

Reinitializing the BIOS
  • Change BIOS battery
    • If the problem persist this may be due to the fact that the battery powering the CMOS (when the computer is shut down allows the CMOS to store information), is depleted.
    • The CMOS battery is a small pin found on the mother board, you can refer to the manual provided with your motherboard to change it or have the nearby computer technician change it for you if you don't want to risk any damage.
    • More information with: Replacing the battery of your motherboard (CMOS battery)
Post back if it is not working we will be happy to help you.
Hope this helps.
Cheers!!!!

Jan 12, 2011 | Sharp Actius PC-RD10 PC Notebook

2 Answers

Cmos checksum bad...usb current status detected system shut down 15 sec


asus manual .pdf bios Version 1301 is the last one what is your version

also does your power supply support 1amp for 5VSB
58bb76e.jpg

Apr 05, 2009 | Computers & Internet

4 Answers

Cmos checksum bad...usb current status detected system shut down 15 sec


Situation Remedies If you have encountered this error and would like to fix your computer, here are some remedies for each situation:
CMOS Battery Not Functioning Properly: If you suspect your CMOS battery is not functioning properly you can easily change it. Before changing your battery, reboot your computer to make sure that the error still exists. If it does, go into your CMOS and write down all of the settings. If all settings are lost, you can usually get them from your computer manufacturer. Now locate the battery and remove it, you might need to consult your computers manual or tech support to remove your battery. Take down the CMOS batteries information such as volt, size, etc. Once you have your new battery, you can replace it and reenter your CMOS settings. If your battery was the cause of the CMOS Checksum Bad Error, you should have remedied the problem.
Your BIOS has Been Updated (either by you or possibly a virus): If your BIOS has been updated recently, your CMOS settings may have become reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.
The Computer Was Shut Down Improperly: Sometimes when running MS Windows, if you shut down your laptop or desktop without first properly shutting down your operating system it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer before turning off the power. Usually this entails going into the Start Menu/ Turn Off Computer/ Shut Down. If you received the error, shut down the computer properly, if this is the cause of the error, the error message will not return.

May 11, 2008 | ASUS M2N-MX Motherboard

1 Answer

Checksum error


Hi Faster Fester. You don't need to install the new BIOS.

You get the checksum error just because you're CMOS battery have run out. Just try to replace the CMOS Battery and you're problem will be solved.

Regards,
Grydor.

Feb 09, 2008 | Computers & Internet

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