HI, I encounter some problem when I start my computer. An error message appears "BIOS ROM Checksum error3 I think there is a problem with the bios in my motherboard. The ref for the Bios is : Phoenix Bios D 686 (146 374 960) do you know if it is possible to upload a new version of the bios ? The motherborads is Micro Stra model Ms 6747 V1

I would say you have a failed memory (RAM) module. Probably a module in one of the secondary slots since the computer is able to POST and will attempt to boot.

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.

update your bios

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

Have you check the video card, is it loose, not sitting right, beeps are either memory, video or a bad mobo. here's a list of beep codes; the numbers represent the amount of beeps
1   The memory refresh circuitry has failed 2   Parity errors have been detected in the first 64 KB of memory 3   A failure has occurred within the first 64 KB or memory 4   System Timer failure: Timer 1 on the mainboard does not work properly 5   The CPU has generated an undetectable error 6 8042 Gate-A20 failure: BIOS cannot switch the CPU into protected mode 7   The CPU has generated an exception error 8   The video adapter is missing, or the memory on the adapter has generated a failure 9   The ROM checksum value does not match the value in BIOS 10     The shutdown register for CMOS interrupt channel 2 has failed POST; the system board cannot retrieve CMOS contents during POST 11 Level-2 cache memory has failed the tests, and has been disabled 2 short POST has failed, caused by a failure of one of the hardware tests 1 long, 2 short Failure in video system: a checksum error was encountered in video BIOS ROM, or a horizontal retrace failure has been encountered 1 long, 3 short Failure in video system: the video DAC, the monitor detection procedure or the video RAM has failed 1 long POST procedures have passed

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

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

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.

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??????