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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.
turn the computer off
now turn on and hold down the delete key until the bios screen appears
in the boot tab select first boot as the cd disk, install the cd for win nt in that drive
close down the cd and then restart and it will boot from the cd
BY reformatting the hard drive win nt you have wiped the win nt operating system from the hard drive
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
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
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.
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
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