password for power booting tampered, getting message-"CMOS checksum error - defaults loaded". how to overcome?

Question

i set two passwords for booting and my user(myself). two of my colleages also aware of booting password. when i tried to switch on my PC,on resumption to duty after 3 days, instead of prompting for booting problem, i noticed the above message below it "press F1 to continue DEL to set up". I set up supervisor password by pressing DEL, still the above message is appearing. please let me know how to fix the problem.

One of the answers hint about dead batter of BIOS. If it is so, the clock of PC should not run when switched off. means, the problem is persisting

Answer 1

Explanation: A checksum is computed as an error-detecting code, to protect the BIOS settings stored in the CMOS memory. Each time the system is booted this number is recomputed and checked against the stored value. If they do not match, an error message is generated to tell you that the CMOS memory contents may have been corrupted and therefore some settings may be wrong. BIOSes react in different ways to encountering this sort of error. Some will warn the user and then continue on with whatever settings were in the CMOS. Others will assume that the settings that were in the CMOS were corrupted and will load default values stored in the BIOS chip "for safety reasons". The error message will indicate which your system is doing.

Diagnosis: The most common cause of checksum errors in CMOS is a battery that is losing power. Viruses can also affect CMOS settings, and motherboard problems can also affect the stored values.

Recommendation: Follow the instructions in this section to address the CMOS corruption. You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values (hopefully against a recent BIOS settings backup).
Recommendation: If you have created a backup copy of your CMOS settings then use them to restore the settings to the correct values. To find the problem itself:

Troubleshoot the battery to make sure that it is not causing the problem.
Make sure that you scan the system for viruses. Viruses can corrupt the CMOS memory (although they cannot reside in it).
Troubleshoot the motherboard. Motherboard problems can sometimes (rarely) result in CMOS corruption.
Troubleshoot your power supply. A failing supply can lead to problems with the whole system, and especially motherboard components.

Answer 2

Your CMOS battery is either dying or dead. If you're not familiar with working on your PC physically I would highly recommend taking it to a trained tech because if you're not careful you can damage the PC beyond any reasonable repair. If you're comfortable with working on it here's what you need to do.

1) Unplug everything from the back of your PC and remove the case or side panel. Since there are so many kinds of PC cases there's no easy explaination for how to do that without running many pages.
2) Look on the motherboard for a large watch battery, that's what keeps the power going through the BIOS and holds that information. Depending on your PC, vision, and lighting you may need to remove that battery so you can get the information from it. If that's the case be very cautious with the clip that holds it in, if you're not it will break and short of replacing the clip itself, which is pretty much impossible.
3) After you either write down the information or take the battery your best bet is to go to a decent computer store and pick up another one. You might find it in other places, but it may take a bit of searching.

I cannot emphasis enough that if you replace the battery yourself to be gentle. I have friends that have ruined otherwise great computers by breaking the clip that holds the battery in.

Answer 3

Why doesn't my password work?
Try these troubleshooting steps:

Set your Caps Lock key correctly. Your AT&T Yahoo! Dial or High Speed Internet password is case sensitive: "PASSWORD," "PaSsWoRd," and "password" are not equivalent. Keep this in mind when entering your password.


Delete your cookies. If cookies aren't accepted correctly by your browser, you may be logged out of email home page as soon as you move to a different page. This may block your current ability to sign in or stay signed in.

Clear your browser's cache. The cache is the memory your browser uses to store the content of the Web pages you visit. Storing that content lets your browser load those same pages more quickly the next time you visit them.

If you're still having problems, find out how you can request a new password.





What should I do if I forget my password?
There are several steps to take if you believe you have forgotten your password:



1. Ensure you typed the correct password. Remember, passwords are case sensitive.


2. Make sure Caps Lock is not enabled on your keyboard.



3. Was the Member ID entered correctly? Make sure you have entered your Member ID and domain which is the same as your full email address.



4. Ensure cookies are enabled.



5. After two unsuccessful attempts, open a new browser window such as Internet Explorer and try again.





Why isn't my password working?
There are several reasons you may be getting the "Invalid Password" or "Invalid ID" error message. The most common reasons are:

Passwords are case-sensitive, meaning that "PASSWORD," "PaSsWoRd," and "password" are not equivalent, so make sure your Caps Lock key is properly set.
Do not add the "@yahoo.com" to your ID when signing in.
If you have recently requested a new password, wait 24 hours before attempting to log back in to your account. This will allow your account to update.
The other possibility is that there is a problem setting your "user cookie." A cookie is a small piece of information stored by your browser to help identify you. If your cookie is not being accepted correctly, you will be logged out of your account as soon as you move to a different page. This may be what is preventing you from logging in or staying logged in as you move from page to page on our web site.
Try shutting all of your browser Windows, then find and delete the cookie files in your browser's directories located on your hard drive. Usually, these files are called "cookies." Be sure that you have selected the proper files before deleting.

Answer 4

it does sound like cmos battery is dead you should replace it. you will need to set bios defaults and save after battery replacement. why the dual boot 98 and xp especially with that processor

Answer 5

Change the CMOS battery

Answer 6

The CMOS battery has died.

Answer 7

put a new battery then ask