In case, the voltage of the battery is low, then there is a high chance that you can get this CMOS checksum error om your system. You need to replace this battery to get rid of this troublesome situation. Moreover, this battery ensures the BIOS loads the correct settings for the computer to start normally.

Replacing Your Bios Logo

Other than that everything was working great (sleep worked and woke). You MUST go into the bios after you have flashed the bios and set at least the current Date and Time, Save settings, because those have been set to bios defaults.

Way 2: Reset The Basic Input/output System (Bios)

The low cost of purchasing an item and the minimum of your time will return a comfortable system load. The stable operation of the microcircuit is supported by a small battery located next to it on the motherboard, basically, this is the CR2032 element. Its function is to supply the chip with a dynamic low-voltage power supply, which ensures the correct execution of tasks by the CMOS chip.

• You should consult the manual for more detailed instructions if you want to use the motherboard jumper.
• My last hope is to wait overnight or something.
• That is of course going on what you posted as being the cause and fix.
• The exact location of the jumper can be found in the motherboard’s (or computer’s) manual.

If that doesn’t fix it try reflashing the BIOS and different RAM. Another remote possibility would be a loose proc.

If you are a computer user, chances are that you may have encountered or currently encountering the dreaded CMOS Checksum Bad Error. The good news is that for the most part, while this error can cause frustration, it can usually be fixed in a short amount of time and with only minor tinkering. well, i’m using the computer right now, but i have to clear CMOS basically all the time in order to boot into windows, downloadable dll files or i’ll get that BSOD or just a random restart. I’m having a quite similar issue – after upgrading to Lion I started getting the CMOS Checksum Error on my GA-Z68MX with DSDT from here.

At first, boot the system to the black screen along with the CMOS (Complementary Metal Oxide Semiconductor) checksum technical error. This CMOS checksum technical error may arise because of the dead battery of the system. So if u turn your computer the next morning and the date and change again then your battery is weak if not date and time should be same when you change it the1st time. It is easy to replace an element; even an inexperienced user can do it. Of course, you can constantly press F1 for Windows to start, but this is more likely a temporary solution.

Cmos Checksum Error After Wakeup (Solved)

The life of this battery is on average 5-7 years, that is, after several years of operation, the element requires replacement. Specifically, the CMOS chip stores certain BIOS parameters, which are also responsible for starting and operating the OS.