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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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Bios rom checksum error, boot block bios vI.0


Error BIOS ROM CHECKSUM - SYSTEM HALTED.
Cause Bad Hardware
Solution Unfortunately this indicates that your computer BIOS ROM chip or Motherboard is physically bad. It is recommended that you contact your computer manufacturer or take the computer into local service center for repair.
If you wish to repair this issue yourself the motherbard will need to be replaced.
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.

The BIOS ROM chip on the motherboard is probably faulty. It could also be another component on the motherboard.

You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values hopefully against a recent


If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
Save, Exit and re-boot and everything should then work.

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.


During the boot process you will see on the screen a certain key to press to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart
You will also need to set the time and date

In the main or system setup screen you should be able to see the date and time Using your arrow keys navigate to the date and change the date. Once highlighted on the month, day, or year, press your arrow keys or your page up / page down keys to change the date.
hope this helps you

Apr 14, 2012 | ASUS A8N-E Motherboard

1 Answer

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 Motherboards

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 | Motherboards

1 Answer

Award Bootlock Bios v 1.0 Bios Rom Checksum Error Detecting Drive A media Insert System Disc and Press Enter I have a GA-7VT600 1394 motherboard. How do i fix. Thanks Richard Let me know if you need more...


if you are getting this message it only means that you need to update your bios version, go to manufacturer site and get latest bios update for your motherboard

Nov 23, 2009 | Intel Motherboard

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 Motherboards

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

Bios ROM checksum error


The rom you used to flash the bios may not have been the correct one for your mobo, or it did not complete the flash entirely. Try using the usb a drive to flash it again and/or revert back to an older version.

Aug 01, 2008 | Foxconn P4M9007MB-8RS2H Motherboard

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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