Pavilion Bios Checksum Error
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Cmos Checksum Error 502
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Cmos Checksum Error Fix
Information User Guides Cancel Example: "Photosmart c4300 printer is jammed" Loading Results Z7_3054ICK0KGTE30AQO5O3KA3014 hp-share-print-widget-portlet Actions ${title} Loading... Z7_3054ICK0KGTE30AQO5O3KA30N0 hp-concentra-wrapper-portlet Actions ${title} Loading... HP and Compaq Desktop PCs - Error: CMOS Checksum Bad This document pertains to all HP and Compaq Desktop Computers. One of the following error messages appears when starting the computer: BIOS ROM checksum error System CMOS checksum bad - default configuration used Press
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Cmos Reset 502 Fix
2011 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 http://support.hp.com/vn-en/document/c01368145 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 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.) http://www.pcworld.com/article/240331/troubleshoot_a_bios_or_cmos_checksum_error.html 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 safe. Replacing one is usually a two-minute job: pop out the old one, pop in the new one, and you're done. After that, you'll probably need to venture into the BIOS to reset the clock and double-check other system settings (like boot priority). Just be glad this didn't happen to your laptop. Laptops use CMOS batteries just like deskt
fix "CMOS checksum error-defaults loaded" JCarterDammit SubscribeSubscribedUnsubscribe141141 Loading... Loading... Working... Add to Want to watch this again later? Sign in to add this video to a playlist. Sign in Share More Report Need to report https://www.youtube.com/watch?v=IVmgpNsj0-I the video? Sign in to report inappropriate content. Sign in Transcript Statistics 181,178 http://www.tech-faq.com/cmos-checksum-bad-error.html views 301 Like this video? Sign in to make your opinion count. Sign in 302 95 Don't like this video? Sign in to make your opinion count. Sign in 96 Loading... Loading... Transcript The interactive transcript could not be loaded. Loading... Loading... Rating is available when the video has been rented. cmos checksum This feature is not available right now. Please try again later. Uploaded on May 12, 2011I run into this from time to time, personally, i think my motherboard battery is shot, but im too lazy right now to fix it right now. If this happens to you do the following and it will fix it temporarily. This is how i fix the problem, probably not cmos checksum error the only way (obviously) so yeah please Thumbs Up,Comment, And Subscribe! Watch this first, then watch this to permenantly fix this http://youtu.be/9uiVu3ARYQ0 Category Howto & Style License Standard YouTube License Show more Show less Loading... Advertisement Autoplay When autoplay is enabled, a suggested video will automatically play next. Up next How to Clear the CMOS - Reset the BIOS & Why - Duration: 11:59. Johnny Phung 1,748,685 views 11:59 CMOS Checksum Bad - Quick Easy Fix 1 - Duration: 2:14. HealMyPc 6,009 views 2:14 Como reparar el error cmos checksun - Duration: 7:42. Er Manu 15,534 views 7:42 How to replace dead CMOS battery and configure BIOS settings - Duration: 6:35. Cube Computer Channel 190,352 views 6:35 Repair Windows 10 using Automatic Repair - Duration: 6:54. Britec09 1,581,676 views 6:54 Configurações BIOS CMOS - Duration: 3:32. Rodrigo Costa 22,672 views 3:32 Boot from Usb flash drive - Duration: 4:23. Aires Comunication 918,335 views 4:23 Tutorial Como Reparar Computador com Erro Bateria CMOS - Duration: 3:13. Wagner Luiz Blasio 10,779 views 3:13 How To Fix CMOS Checksum Error - Duration: 0:59. StarletFroast 75,895 views 0:59 How to fix Windows 10 start-up problems - Blacks
the CMOS Checksum Bad Error, hence they can be handled effectively. The Error Explained A checksum is computed as an error detecting code to guard the BIOS settings stored in the CMOS memory. The CMOS Checksum Bad Error is an error that occurs when the CMOS values turn out to be incorrect. The CMOS memory stores a specific value normally to guard the BIOS software. Each time the computer is booted, this value, which is a number is checked against the stored value in the CMOS memory. If these two values are different, it causes a CMOS Checksum error message. If these values are the same, the computer boots normally. Each computer usually deals with the CMOS Checksum Bad Error differently. Some computers warn the user and continue to boot up using settings in the CMOS, while other computers might warn the user and use the default settings in the BIOS as the correct settings and carry on with a normal boot or reboot. Usually, the strategy the computer employs is stated in the error message. Causes of CMOS Checksum Bad Error There are usually three main reasons that a CMOS Checksum Bad Error occurs. They include: CMOS Battery may not be functioning properly. The battery life may have expired. The user or a virus may have updated the BIOS. 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). Solutions to CMOS Checksum Bad Error The CMOS Checksum Bad Error can be fixed easily by following the listed steps carefully. CMOS Battery May Not be Functioning Properly If the user suspects that the CMOS battery is not functioning properly, he/she can easily change it. Before changing the battery, reboot the computer to make sure that the error still exists. If it does, go into the CMOS and write down all of the settings. If all the settings are lost, they can usually be retrieved from the computer manufacturer. Now locate the battery and remove it. Consult the computer manual or technical support to remove your battery (the battery is flat, shiny silver colored, and coin-shaped) if needed. Take down the CMOS battery’s information such as vo