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.
yes, i replace my cmos battery and i check usb jumpers also and change ram also, but error remains same.
thank you for your advice support793 , i try whatever available on net.
Lets start with some diagnostic questions.
* System specs. (mobo, processor, add-on cards etc).
* When did this problem first occur?
* Was it intermittent or did it just stop working?
* Have you recently added any new hardware to the system, internal or external?
* How many USB devices and what types (printers, ext HDDs mice etc.), including powered or passive hubs, have you attached either seperatly or all at once?
* So I understand, did the problem occur before or after you upgraded the BIOS?
* Can you access the BIOS at all?
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Okay, now for some easy things to try These suggestions may help eliminate suspect hardware.
1) * Resetting the bios.--- Unplug the AC power cable, remove CMOS battery, set CMOS jumper on mobo to reset, press power button. replace CMOS battery, make sure it is correct side up, place CMOS reset jumper back to normal position, reconnect to AC power. then power up.
Did the system boot okay?
2) * Disconnect ALL of the USB wires from the motherboard headers.
Did the system boot okay?
Get the specs and info to me and give the diagnostic things a try, let me know the results.
Scorpio
Did you replace the cmos battery on the motherboard. This is an older discontinued board but you should be able to find a replacement cmos battery.
Good Luck
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