Cmos Checksum Error After Changing Battery
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Cmos/checksum Error Continues After Battery Replacement
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Cmos Checksum Error Defaults Loaded
Monitors Forums Recent Activity Today's Posts News Comments TechSpot Forums Forums TechSpot Core CPUs and Motherboards Today's Posts CMOS/Checksum error continues after batteryreplacement Bysomnamblst Mar 9, 2003 I am readying an old PC cmos checksum error press f1 to continue I built (686 Cyrix 200 Mhz) to give to a brother who has never had or tried a computer but is expressing some curiosity. Long story short I discovered several issues when I powered up this PC to ready it for a car ride to Florida that is leaving soon. 1. CMOS battery/Checksum error, removed old 2032 battery 2. I also removed a non functioning primary slave cmos checksum error dell Seagate HD 3. Installed new battery 4. On reboot HD was not detected, auto and user defined HD did not work, system kept reverting to 9/1/1996 date. CMOS/Checksum errors continue despite new battery. Also moved jumper on HD to reflect single drive status. 5. Swapped power supply from CD to primary master HD (Western Digital) resulting in HD being detected. Used a different power supply cable for CD resulting in CD but no HD. Removed jumper from HD completely and tried a 3rd source for power to CD which worked, HD and CD detected, continued CMOS/Checksum errors mean Plug and Play enabling in CMOS is not being retained and must be enabled through setup to continue booting. AND with the cover off and the tight fit of swapping things in a desktop I also noticed that the CPU fan is not spinning. I am not sure when this happened, I was feeling heat on my hand all along as I manipulated cables. Good thing the cover is off. This fan is attached to the power cable I have attached to HD which meanes that it used to be piggybacking off CD drive not HD. My motherboard manual (
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Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's http://www.techspot.com/community/topics/cmos-checksum-error-continues-after-battery-replacement.4577/ how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Motherboard keeps giving checksum error after installing new battery up vote 0 down vote favorite I am repairing a computer with an ASUS M2NBP-VM CSM ACPI motherboard (I am not sure this is the correct description of the http://superuser.com/questions/931115/motherboard-keeps-giving-checksum-error-after-installing-new-battery motherboard but, at least, this is what gets printed to the screen during boot). During boot, I get the following error message: CMOS checksum error - Defaults loaded Indeed, the time, date, and boot device priority are reset and the values I had set up before switching the computer off are gone. My first explanation was that the CMOS battery must be empty so I bought and installed a new one. But the behaviour has not changed: after switching off and disconnecting the power cable, the next time I switch on, the CMOS settings are lost and the error message is printed again. Any suggestions as to what I should check next? EDIT Following the suggestions contained in the answers and comments, I performed a few further tests using another computer that I know is working properly, i.e. it does not lose BIOS settings between reboots. Unplugged computer with its own battery on, waited a minute or two, plugged again, booted: settings are there. Unplugged again, removed battery, put new battery (the one I had used to te
List Welcome Guide More BleepingComputer.com → Microsoft Windows Support → Windows XP Home and Professional Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality. http://www.bleepingcomputer.com/forums/t/472467/cmos-checksum-eror-after-battery-replacement/ Register a free account to unlock additional features at BleepingComputer.com Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you checksum error are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site. Click here to Register a free account now! or read our Welcome Guide to learn how to use this site. CMOS checksum eror after battery replacement Started by Little dawg , Oct 19 2012 10:13 PM Please log in to reply 2 cmos checksum error replies to this topic #1 Little dawg Little dawg Members 10 posts OFFLINE Local time:10:29 PM Posted 19 October 2012 - 10:13 PM I recently changed my graphics card. While the card was out, I decided to change out the original year 2007 battery. I had no CMOS problems before, but I thought that since the battery was over 5 years old and buried under the graphics card I should change it. Now I get a checksum error telling me that it will reset to the defaults. Is there a driver that I should have installed? The error does not occur at every restart, only when I unplug the computer. I checked the voltage of the new battery and it is good (3.2 volts). There are no problems at all with my computer, unless I unplug it. Dell Inspiron 530, Windows XP Pro SP3 Back to top BC AdBot (Login to Remove) BleepingComputer.com Register to remove ads #2 jhayz jhayz BC Advisor 6,920 posts OFFLINE Gender:Male Local time:11:29 AM Posted 20 October 2012 - 01:37 AM A graphics card replaced along with the CMOS battery replaced would trigger the hardware reset only once. Tekken Back to top #3 hamluis hamlu