Question about MSI K9VGM-V Motherboard

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Cmos checksum error after flashing the bios

I'm pro and have tried the following
reset the bios via jumper and removing the battery removing the power cable and waiting for different times during these processes
I've reflashed with ver1.3 and ver1.7 (latest) of Phoenix - Award bios several times using winflash and awdflash in dos.
Some say it might be that the flashing progs arent reseting the bios checksum or that the battery is flat - mines not - i've cleared the cmos via winflash aswell. i'm fedup with msi for their msi live update program. The only way I get my pc to boot and load windows is by bypasing the bios (Key f1) when i boot. If i do any saving of bios settings (key F10 save and exit) the pc will not boot and i've got to reset the bios again.
I have a K9VGM-V (MSI) VIA K8M890 Chipset based motherboard. AMD 64 x2 4400+ DUALies Proccessor. 1G + 512MB DDR2 667 Ram 2 Sata HD's and one IDE (BOOTSECTOR) and a Nvdia Gfce 7300GS Graphics card Genius 5.1 Pci Soundcard (Onboard Realtech 8.1 has blown) and a Samsung DVD writemaster.
I know that if a setting in the bios is set incorrectly the pc wont boot - Like enabling a setting. But i haven't seen anything that caught my eye.
please or I might go say hi to M.. S.. I..
Johann. 20 Jan 2008

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Re: cmos checksum error after flashing the bios

I had a similar experience after upgrading my RAM. When you reset your CMOS and have default settings maybe you should check if your RAM timings are correct. I could not get mine to load with both sticks in until I fixed the timings from the default settings.

Posted on Jan 20, 2008

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Hi Oliver, the most common error related to the message,
(Bios Rom Checksum Error). Someone has left a floppy disk in the floppy drive. Once the floppy disk has been removed press the reset button on the PC, your windows will start normally. Next place to look is in your bios.
Open your manual to page 27.
Enter your bios & go to the title Advanced BIOS Features. Check First, Second & Third boot devices they should be as follows. Floppy disk drive, CD-ROM drive & primary hard disk drive. If both of the above are ok than try clearing the cmos/bios by resetting the cmos jumper (JP1) location on page 5. Descriptions of page five on page 6. CMOS settings on page 9.
When your system restarts re-enter your cmos & reset up your bios settings. Lastly if none of the above has fixed the error message, than remove the cmos battery & check its voltage. It should maintain 3volts. If yours' is lower than 3volts replace the cmos battery. There is one other possible fix. It’s an option not given lightly. Flashing a cmos/bios is not recommended unless all other options have failed.
Bios link for the EliteGroup P4VMM2 V8.1
Main web site;

Good luck Oliver!

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the only thing i can think of is when you changed the battery somehow the board terminals positive negative are not in proper contact with battery
did you try resetting bios by the pins on the motherboard
somewhere on the board is printed bios reset or words to the effect
most times it is a 2 pin connector with a jumper only on 1 pin connect the jumper across both pins remove and try to reboot
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Your BIOS has Been Updated (either by you or possibly a virus): If your BIOS has been updated recently, your CMOS settings may have become reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.
The Computer Was Shut Down Improperly: Sometimes when running MS Windows, if you shut down your laptop or desktop without first properly shutting down your operating system it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer before turning off the power. Usually this entails going into the Start Menu/ Turn Off Computer/ Shut Down. If you received the error, shut down the computer properly, if this is the cause of the error, the error message will not return.

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