Question about Biostar U8668 Motherboard

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Bios problem how can i fix a "bios rom checksum error"

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If the backup battery is bad it cannot save the bios info so it fails the checksum each time you cycle the power. Replace the battery and it should be fine. This is the coin cell battery on the motherboard, if it's a laptop it could also be a small battery pack.

Posted on Aug 09, 2008

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I used jumper bios reset and now gettin bad checksum error. on the mother board writen that K8N rev 1.01 i downloaded k8n motherboard rom file and renamed as k8n.rom and copied to disket. its deleting and...


Hi.

The most probable reason you are getting the bad checksum error is you have to set the date and time because you have cleared the CMOS and reset the BIOS.
You should also get a message that says press F1 to load defaults or press a certain key to access setup. Access setup (BIOS) and set the date and time. That should take care of the bad checksum error.
Another good idea is make sure the motherboard battery is not dead either.



Regards.

Jun 17, 2011 | ASUS Computers & Internet

1 Answer

Hello, Although I changed the CMOS battery and I'm flashing the bios with awd865 km4m2803.bin and I am clear the CMOS then I restart my pc but the error "CMOS checksum error" exists Again, my...



This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.
http://majorgeeks.com/BIOS_Patcher_d3965.html

Find and fix errors in your system BIOS
BIOS Patcher can find and fix errors in your system BIOS (only AWARD BIOS for now) and also it can add or open new features, i.e. some features that your BIOS has but they are closed by manufacturer of your motherboard. It scans rom file. If it finds any known errors it fixes the errors. If it finds any closed features it opens it. hope this helps

Apr 29, 2011 | EliteGroup KM400-M2 Motherboard

1 Answer

Bios rom checksum error


replace cmos battery..its maxell cr2032

May 17, 2010 | Computers & Internet

1 Answer

BIOS ROM checksum error


sounds like your bios is corrupted, try going to the motherboard site and update your bios software. It could also be bad memory modules.

Nov 01, 2009 | HP Computers & Internet

2 Answers

Bios ROM checksum error (Compaq SR5237CL with M2N68-LA MB)


A BIOS checksum error can be caused by a nearly flat BIOS battery.
I would replace the BIOS battery first before attempting to upgrading the BIOS.
Some motherboard BIOS firmware is upgraded by running a program that has been copy to a DOS boot disk or the upgrage maybe done from within the BIOS setup. These firmware upgrage and instructions are on the motherboard WEB site, in your case the Compaq/HP WEB site. Make sure you select the upgrade for your model motherboard.
NOTE it is possible that if you make a mistake you could ruin your motherboard, if you are not sure seek help from a computer savy friend.
Use this link :-
http://h18000.www1.hp.com/cpq-country/cpq_support.html

Sep 17, 2009 | HP Computers & Internet

5 Answers

Bios check sum error


You can try flashing/updating the BIOS if nothing works.

Nov 28, 2008 | Computers & Internet

1 Answer

Checksum error


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
http://www.ecs.com.tw/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=436&DetailName=Bios&DetailDesc=P4VMM2%20%20(V8.1)&CategoryID=1&MenuID=82&LanID=0
Main web site;
http://www.ecs.com.tw/ECSWebSite/Products/ProductsDetail.aspx?CategoryID=1&DetailID=436&DetailName=Feature&MenuID=52&LanID=0

Good luck Oliver!
Mike

Aug 23, 2008 | EliteGroup P4VMM2 V8.1 Motherboard

1 Answer

Checksum error


Hi Faster Fester. You don't need to install the new BIOS.

You get the checksum error just because you're CMOS battery have run out. Just try to replace the CMOS Battery and you're problem will be solved.

Regards,
Grydor.

Feb 09, 2008 | Computers & Internet

5 Answers

Bad BIOS checksum.... CMOS bad checksum errors


BOOT BLOCK COMPATIBLE VERSION VER .005
BAD BIOS CHECKSUM

CHECKING FOR CD ROM
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO CD-ROM FOUND
CHECKING FOR FLOPPY DISK
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO FLOPPY DISK FOUND

Does someone already fix this problem??????

Nov 15, 2007 | ASUS M2N-MX Motherboard

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