Checksum Error On Boot Up
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Checksum Error Fix
PC hassles Home Hardware Troubleshoot a BIOS or CMOS 'Checksum' Error Comments By Rick Broida, PCWorld Sep 21, 2011 9:40 AM Reader Robert has an older Emachines desktop
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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 configuration used.'" Robert says he's tried contacting both Phoenix Technologies (makers of the checksum error wireshark 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 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 t
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in Statistics 75,277 views 41 Like this video? Sign in to make your opinion tera source file checksum error count. Sign in 42 25 Don't like this video? Sign in to make your opinion count. Sign in 26 Loading... Loading... bios checksum error Loading... Rating is available when the video has been rented. This feature is not available right now. Please try again later. Published on May 30, 2012Click here to fix registry::http://www.reginout.net/Different strategies used for solving this problem::Restart http://www.pcworld.com/article/240331/troubleshoot_a_bios_or_cmos_checksum_error.html the computerReplace CMOS BatteryReset Default CMOS SettingsScan Corrupt RegistryUpdate your BIOSReplug CPU ComponentsReplace your MotherboardFor more information click here::https://www.facebook.com/notes/backsp... Category Howto & Style License Standard YouTube License Show more Show less Loading... 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 1,714,603 views 11:59 CMOS Checksum Bad - Quick Easy Fix https://www.youtube.com/watch?v=G2yRfclYm-g 1 - Duration: 2:14. HealMyPc 5,202 views 2:14 How to temporarily fix "CMOS checksum error-defaults loaded" - Duration: 3:48. JCarterDammit 179,478 views 3:48 How to replace dead CMOS battery and configure BIOS settings - Duration: 6:35. Cube Computer Channel 184,957 views 6:35 Solving the CMOS checksum error - Duration: 1:31. DiegoG's Tech Channel 2,638 views 1:31 How To Reset CMOS - Duration: 2:23. eTeknix 694,103 views 2:23 How to Clear CMOS ? - Duration: 2:32. MSI Global 407,798 views 2:32 How To Reset CMOS - Duration: 2:07. HiTechReviewsUK 29,657 views 2:07 CMOS Error *Fix* - Duration: 2:03. Justin Harper 3,109 views 2:03 Tutorial: How to replace the CMOS battery in your laptop - Duration: 8:55. mr82020674 170,232 views 8:55 PRESS F1 TO BOOT ERROR ON PC FIX - Duration: 2:55. Charlie Charles 347,578 views 2:55 Replacement of Dead Bios on Gigabyte Mobo ga-x38-dq6 - Duration: 9:41. TheCirclepixel 21,160 views 9:41 How To Reset Your CMOS - Duration: 1:33. Anthony Di Iorio 157,109 views 1:33 Cmos/Gpnv checksum bad error fix - Duration: 1:48. quest2718 5,783 views 1:48 How to: Test and Replace Computer CMOS Button Cell Battery - Duration: 9:58. GuruBrew 28,393 views 9:58 How to Fix CMOS checksum error on Dell Inspiron 570 (BIOS Update) - Duration: 1:13. Cedrick Palado 3,153 views 1
computer's data is intact and unhampered. The data is scanned and tested for accuracy, either based on how well it relates to data elsewhere or based on previous data that was stored on the same computer. Essentially, all of http://www.tech-faq.com/checksum-error.html the bits of data in a particular document or file are added up and a number or hash is created. This number or hash can then be compared to the number or hash generated from the same file on another http://www.techspot.com/community/topics/cmos-checksum-error-defaults-loaded.171622/ person's computer or at a previous time on the same computer. When does a Checksum Error Occur? Although a checksum error can occur at any time while a computer is comparing data, it is most commonly present during a computer's checksum error startup procedure. During a computer's start up processes, the BIOS settings, which are stored in a CMOS memory chip, are computed and then checked against the previous value. If the computed values do not match exactly, the computer warns the user with a checksum error message that the data may have been changed or corrupted between start up cycles. All BIOS programs present a different error and therefore will either continue with booting or refuse to boot until the problem is checksum error on corrected. Depending on the type and the severity of the error generated, there may be one of a variety of ways to rectify the issue. The most common cause of a checksum error during the startup process is a faulty battery that is not providing sufficient power to the motherboard when the computer is off. However, motherboard malfunctions and viruses can also contribute to checksum errors. Other Types of Checksum Errors Another type of checksum error may occur with any program at any time. It is usual for many programs to now provide checksum information when that program is downloaded. Using a checksum program or MD5 hash checker, a user can quickly compare the checksum of a downloaded program with the checksum that the software developer provides. This is a common way to make sure that users are downloading the proper program and that no data was corrupted during the download process. Checksum errors originating from download errors can easily be corrected by re-downloading the problematic program. Follow Us! Rate this article: ★ ★ ★ ★ ★ Checksum Error, 3.44 / 5 (9 votes) You need to enable JavaScript to vote Mail this article Print this article Last updated 11 March, 2016. Related Posts RISC vs. CISC CPUs process data using instructions stored in the computer memory or RAM. The RAM is ... L2 Cache L2 cache is the second tier of a multi-cache memory system and provides memory t
TechSpot RSS Get our weekly newsletter Search TechSpot Trending Hardware The Web Culture Mobile Gaming Apple Microsoft Google Reviews Graphics Laptops Smartphones CPUs Storage Cases Keyboard & Mice Outstanding Features Must Reads Hardware Software Gaming Tips & Tricks Best Of Downloads Latest Downloads Popular Apps Editors Picks Device Drivers Product Finder New Releases New PC Games Laptops Smartphones Routers Storage Motherboards Monitors Forums Recent Activity Today's Posts News Comments TechSpot Forums Forums Community Ask a Question Today's Posts CMOS checksum error - DefaultsLoaded Bymichaelsimpson7 Oct 2, 2011 Post New Reply So I know you shouldn't do this (and I'm gonna stop from now on) but I've been shutting down my PC by holding the power button and not shutting it down properly - and I think this is the reason for my problem. A few days ago I started up my computer and then after I had been on the internet for a while it just rebooted itself. So I kept starting it up then when everything had loaded it just kept rebooting. Now it doesn't even load up it goes to a black screen that says something about CMOS checksum error - Defaults Loaded. I've searched for other people with this problem and the responses tend to be to do something with the BIOS (sorry, I'm not very technical. I don't even know what the BIOS are) but my problem is my keyboard has now become unresponsive that I can't get it into anywhere to change the settings. When I start up all the lights come on for a second (num lock, caps lock and scroll lock) but then go off and my keyboard becomes unresponsive. Then when I try to reboot the computer from the power button it doesn't even start up now! (It's just going from bad to worse) Like it turns on (I think it's the fan that makes a noise?) but nothing happens the screens black, it doesn't even make that beeping noise it usually does when it's just starting to start up. I have to wait for a while (like a good few hours or even a day) before I can try and start it up again and it will go to the CMOS checksum error screen. Please help! And, if possible, please put things as simply as possible as (maybe you can tell) I'm not very technical. Oct 2, 2011 #1 Chatecky TS Rookie Might be your powersupply. I actually had the same probablem and i sorta fixed it. Normally when you first see the problem you will get a advanced bootup screen giving you the option to go in safe mode normal mode and theres another option that s