Error The Cmos Checksum Is Invalid
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Cmos Checksum Error Fix
Information User Guides Cancel Example: “Laserjet P1102w driver” or “HP Pavilion 17-f002na will not turn on” 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 Checksum Error Even After Replacing Battery
Tablets Windows Hassle-Free PC Smart fixes for your PC hassles Home PCs Troubleshoot cmos reset 502 fix a BIOS or CMOS 'Checksum' Error Comments By Rick Broida, PCWorld Sep 21, 2011 9:40 AM Reader Robert has an cmos error on startup 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 http://support.hp.com/us-en/document/c01368145 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.) Fortunately, this sounds like a pretty easy problem to fix. I don't think the http://www.pcworld.com/article/240331/troubleshoot_a_bios_or_cmos_checksum_error.html 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 desktops, but on most models they're difficult--if not impossible--to replace. Which begs the question: After all these years, why haven't laptop manufacturers figured out a better way to po
Subscribe to our newsletter Search Home Forum Ask a question Latest questions Windows Mac Linux Internet Video Games Software Hardware Mobile Network Virus Café How To Download Ask a question Windows Software Mac Software http://ccm.net/faq/618-cmos-checksum-error-default-loaded Linux Software Android Apps BlackBerry Apps iPhone Apps Windows Phone Apps News Encyclopedia Home How To Hardware BIOS CMOS CHECKSUM ERROR - DEFAULT LOADED Ask a question USESFRITBR September 2016 When http://www.streetdirectory.com/travel_guide/140357/technology/what_is_a_cmos_checksum_error_and_how_do_you_fix_it.html a CMOS Checksum error occurs during system startup, it could mean that the system has been restored to default factory settings. The CMOS contains data related to BIOS and may cmos checksum have been reinitialized. It may also be possible to fix the problem by reinitialising BIOS. The problem could also occur due to the depletion of the CMOS battery. If the user cannot locate the pin battery, the help of a computer technician should be taken to prevent damage to the hardware or motherboard. The CMOS checksum error - defaults loaded should be cmos checksum error solved after changing the CMOS battery. Symptoms Solutions: Symptoms 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 contains data related to the BIOS, has been reinitialized and that your PC has been reset to factory settings. Solutions: Reinitializing the BIOS Before making any costly maintenance try: reinitialized the BIOS. Change BIOS battery If the problem persists this may be due to the fact that the battery powering the CMOS (when the computer is shut down it allows the CMOS to store information), is depleted. The CMOS battery is a small pin found on the motherboard; 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
Mileage Claims Planning Tools Jogging Calculator Linear Distance Analyse This Loc Business Finder Singapore Zones SD Food Advisor Singapore Images Singapore Hotels S'pore Travel Guide SD Shopping SD Real Estate - - - - - - - - - - - - - - - - - - - - Regional Services- - Currency Converter Forums Hotel Reservations SD Editorials Weather Travel Health Medical Cars Technology Home Family Business Interest Woman Currency Converter: Find Euro Currency, US & other currency exchange rates here! Travel Health Medical Cars Technology Home Family Business Interest Woman Editorials » Technology » Technology What is a Cmos Checksum Error and How Do You Fix it By: Robert - Bad or old CMOS battery: Reboot the computer. If the error still occurs after rebooting, enter CMOS setup and check all values, this includes verifying that the time and date are correct. Once everything has been verified, make sure you save and exit the CMOS setup. If everything appears to be proper and the issue persists, try resetting the CMOS values to the defaults and/or Reset Configuration DataNote: If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be weak or already used up. More details about replacing CMOS values can be found on your motherboard's manual- BIOS update:If you had recently updated your BIOS of the computer, the CMOS values could have been reset. Enter the CMOS setup and re-enter all the appropriate values. More details about entering the BIOS setup can be found on your motherboard's manual.If you are unable to enter into the BIOS setup or after running a BIOS update, your computer no longer keeps its values, it is possible that an incorrect BIOS update may have been installed for your computer or the version may be corrupted. We suggest you try to update the BIOS again or roll back to an earlier version. - Disconnecting power supply before properly shutting down the computer:If the power had been disconnected to the computer while running, it is possible that this could have corrupted the CMOS. Therefore, ensure that the computer is properly shut down before switching off the power supply. If you have a laptop, ensure that the battery is at least 25% charged before switching off the power supply.