Cmos Checksum Bad Error Message
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The How-To Geek Forums Have Migrated to Discourse How-To Geek Forums / Windows XP Bad Bios checksum (How to Fix it) ??? (39 posts) Started 4 years ago by tech27 Latest reply from G41M Topic Viewed 20879 cmos checksum bad fix times 1 2 Next » tech27 Posts: 387 This post has been reported. So
0251 System Cmos Checksum Bad
here's my problem guys... Recently I did a clean install of windows XP on my PC, everything goes smooth and no errors. But after cmos checksum bad msi a day I use it and shut it down for an hour and when I return and turn my PC again this problem comes out... I have no idea why it happened, so if anyone knows how to fix cmos checksum bad menu this I will gladly appreciate it... Btw.. I have some experienced on PC troubleshooting but sad to say it is my first time to encounter this problem and I have no idea how to fix it.. So please I really need your help guys.... Reports: · Posted 4 years ago Top Sarris Posts: 189 This post has been reported. Causes of CMOS Checksum Bad Error There are usually three main reasons that a CMOS Checksum Bad Error
Cmos Checksum Bad Usb Device Over Current Status Detected
occurs. They include: 1. CMOS Battery may not be functioning properly. The battery life may have expired. (it's probably this) 2. The user or a virus may have updated the BIOS. 3. The computer may not have been shut down properly e.g. shutting off the computer’s main power without first shutting down the computer (MS Windows requires the computer to be shut down before the power is shut off). This is from tech-faq.com Also, please don't multiple post the same question. Thanks & good luck Reports: · Posted 4 years ago Top tech27 Posts: 387 This post has been reported. First of all... Sorry for doing multiple post but I didn't meant to do that because every time I post it says "404 Not found" hmmm... so what should I do first to solve this problem ???? Reports: · Posted 4 years ago Top tech27 Posts: 387 This post has been reported. BTW.. what does CMOS means ??? Sorry I had never encounter a bios problem before..... Reports: · Posted 4 years ago Top semiretired Posts: 1214 This post has been reported. Cmos equals continuous metal oxide semiconductor. It is the small disk battery found on your motherboard. It is usually a cr2032 that can be purchased at a walmart......etc. In a laptop, it could be sheathed in a holder of some type and be more expensive. Reports: ·
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What Does Cmos Checksum Bad Mean
Cameras Hassle-Free PC Smart fixes for your PC hassles Home Hardware Troubleshoot a BIOS or CMOS 'Checksum' Error Comments By Rick Broida, PCWorld Sep 21, 2011 http://www.howtogeek.com/forum/topic/bad-bios-checksum-how-to-fix-it- 9:40 AM Reader Robert has an older Emachines desktop that recently developed a problem: "I installed a driver updater tool, and when I deleted it, it did something that changed my BIOS. The black screen appears when I boot up and reads: 'System BIOS shadowed. Check time and date settings. System CMOS checksum bad--default http://www.pcworld.com/article/240331/troubleshoot_a_bios_or_cmos_checksum_error.html configuration used.'" Robert says he's tried contacting both Phoenix Technologies (makers of the BIOS) and Emachines, and neither company could help. (The BIOS dates back to 2003, and the system itself is long out of warranty.) Fortunately, this sounds like a pretty easy problem to fix. I don't think the driver-update utility is to blame here, but rather a poorly timed CMOS-battery failure. See, most desktop motherboards have a small battery that supplies power to the BIOS even when the machine is turned off. This battery might last two years or it might last 10, but when it fails, you'll often see an error message like the one above. (Your system will also fail to keep proper time, as the clock is one of the elements powered by that battery.) Most CMOS batteries are standard CR2032 "button" cells, which cost no more than a few bucks at your local drugstore, but check your motherboard documentation just to be
is quite an irritating error message but the remedies are quite easy for this error. Basically CMOS is Complementary metal oxide semiconductor and used in the integrated circuit design. Now in computer CMOS http://techproblems.org/cmos-checksum-bad-error/ has a specific and very important job. In CMOS memory the initial boot up data are stored. When computer is getting started means boot up is in process, then the values are compared in the CMOS memory. If the data are same then computer will start normally otherwise the above said message will be shown. Now there are several reasons for the values getting changed cmos checksum in the CMOS memory. Platform As the problem is associated with motherboard and CMOS memory settings so platform can be any. Cause There are mainly three reasons for this error. The CMOS battery may have expired. In the motherboard there is a battery to keep the system clock running. Now if the battery is expired then the time and date settings will be changed cmos checksum bad and will not be updated. Computer is shut down improperly. Normally before power off the Operating system has to be shut down. Now if we remove power supply before shut down process then the error may occur on next start. BIOS have been updated. This can be caused by any virus or by the user. Problem Depending upon manufacturer there are different types of problem faced. For some computer there will be a error message on the initial boot up and the computer will get started normally. For some other computer there will be an error message on the boot up and user will be asked to change the CMOS values to default. After that computer will get started normally. Solutions Based upon the reason there are solutions for each of it. First of all restart the computer again. If the error still persists then for the CMOS battery problem we can remove the battery and get it replaced by another one. You can do it by yourself but if not sure then better ask a person on the matter. If you are doing it by yourself then note down the volt