Pre-boot Error Cmos Configuration Error
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Cmos Checksum Error On Boot
Hassle-Free PC Smart fixes for your PC hassles Home PCs Troubleshoot a BIOS or CMOS 'Checksum' cmos checksum error defaults loaded Error Comments By Rick Broida, PCWorld Sep 21, 2011 9:40 AM Reader Robert has an older Emachines desktop that recently developed a problem: "I installed a driver updater cmos checksum bad fix 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 BIOS) and Emachines, and neither company could help.
Cmos Checksum Error Press F1 To Continue
(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 to v
DELL support for several weeks now about whether this is a windows problem or a hardware problem. They have led me on a wild goose chase so I seek help here. Several weeks ago our 3-year old cmos checksum is invalid DELL (on a small home network)now running XP for nearly a year began to have trouble how to clear cmos checksum error booting and when it finally did boot to stop at the DOS screen message show above. Continung in a normal reboot worked fine as
Cmos Checksum Failure
did booting in safe mode. The problem recurred on the next cold boot no matter which mode. Investigation of the SETUP error messages showed "Pre-boot error: CMOS configuration error. However, replacing the CMOS battery did not help. Incidently, all http://www.pcworld.com/article/240331/troubleshoot_a_bios_or_cmos_checksum_error.html the HDs are correctly recognized. Warm reboots work fine and the problems with cold boots are directly proportional to how long the DELL is shut down (but connected to power). Attempting to cure the problem by updating the DELL BIOS fails as the good version of teh new BIOS on a boot floppy yields the message "Flash data image read from disk found to be not valid." Re-installing XP does not help. Suggestions? Rob hausman, Oct 13, 2003 #1 http://www.pcreview.co.uk/threads/failure-of-windows-to-shut-down-properly.294620/ Advertisements Malke Guest Rob hausman wrote: > I have been arguing with DELL support for several weeks > now about whether this is a windows problem or a hardware > problem. They have led me on a wild goose chase so I seek > help here. Several weeks ago our 3-year old DELL (on a > small home network)now running XP for nearly a year began > to have trouble booting and when it finally did boot to > stop at the DOS screen message show above. Continung in a > normal reboot worked fine as did booting in safe mode. > The problem recurred on the next cold boot no matter which > mode. Investigation of the SETUP error messages > showed "Pre-boot error: CMOS configuration error. However, > replacing the CMOS battery did not help. Incidently, all > the HDs are correctly recognized. Warm reboots work fine > and the problems with cold boots are directly proportional > to how long the DELL is shut down (but connected to > power). Attempting to cure the problem by updating the > DELL BIOS fails as the good version of teh new BIOS on a > boot floppy yields the message "Flash data image read from > disk found to be not valid." Re-installing XP does not > help. Suggestions? I think this is a hardware problem, probably with the motherboard. If your machine is still under w
Norsk Polski Português Русский Svenska Türkçe 简体中文 Resolve Hardware Issues Using ePSA or PSA Diagnostics and Guide to Error Codes This article provides information on how to start and run the Enhanced Pre-boot System Assessment (ePSA) Diagnostics, and the definitions of any test results. In other http://www.dell.com/support/Article/us/en/04/266787 words it takes you through your PCs built-in self diagnostics and what the http://www.makeuseof.com/tag/3-troubleshooting-tips-guaranteed-to-boot-your-pcs-motherboard/ error codes mean. Table of Contents: What are the PSA diagnostics? Using the PSA Diagnostics 1. What are the PSA diagnostics? Dell has built a suite of self diagnostics into their mobile and desktop PCs. These are the Dell Enhanced Pre-Boot System Diagnostics (ePSA). If you can't boot, POST or startup your PC then cmos checksum these self diagnostics will be the first thing you should try to run. Whether they run and if they give any error codes, goes a long way to troubleshooting your issue. If they don't run at all, then there is something wrong with your hardware at a basic level. If they give an error code, then it narrows down where the fault may lie for further hardware troubleshooting. cmos checksum error If they pass, then all of your hardware has passed the tests and you need to troubleshoot your software next. The PSA diagnostics have a text-based interface while the ePSA (previously PSA+) diagnostics may have either a text based interface or a Graphical User Interface (GUI) - (Lists of text versus pictures/graphs and text onscreen going through each of the tests.) The tests are very comprehensive. The ePSA suite of tests has all the tests included in the older PSA suite, as well as added support for: MpMemory algorithms included. Machine Check exception on. System board diagnostics consolidated into one heading. Note: Notebooks may have either PSA or ePSA diagnostics, depending on their age. While Desktops will have the desktop version of the ePSA diagnostics. You can then use the results to determine if any hardware failure has occurred or pinpoint any failure points. Note: The diagnostics on notebook systems are not meant to be run when the system is docked or the internal LCD is in a closed position. Doing this may result in a false error being reported. Typically it would be a 2000:0326 or a 2000:0321 error. The 2000-0326 and 2000-0415 errors can also be reported in er
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