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.
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In computing, BIOS (basic input output settings) refers to the information stored regarding a computer's hardware configuration, the system date and time and any applied password. This information is known as the BIOS or CMOS settings--the BIOS is stored on a small battery-powered semiconductor chip known as the CMOS (complementary metal oxide semiconductor). Having a CMOS or BIOS password restricts unauthorized changes to the system's hardware configuration and, in some computers, may even be required for booting. A lost password may be reset by removing the CMOS battery, clearing the motherboard jumper or using a software-based password cracker.
Removing CMOS Battery 1. Shut down the laptop and unplug its power cord from the wall outlet. Remove the battery cover under the laptop and gently raise the battery from its dock. Unplug any peripheral devices with a live power source connected to the laptop, such as a modem or printer.
2. Locate and remove the CMOS battery. Refer to your user manual or visit the manufacturer's website for your laptop's architecture. Follow manufacturer recommended procedure to access and remove the CMOS battery. Depending on make and model, this procedure may be more involved for some laptops and not others. The CMOS battery is a flat circular shape and resembles a watch battery.
3. Wait 30 minutes and then put the battery back in. This will erase all information stored in BIOS. Assemble the laptop, making sure you leave no loose connections. Power up the laptop and press "F1" when you get the "CMOS cheksum error" message. Type in a new password.
Clearing CMOS Jumper 1.Turn off the laptop and access the motherboard following recommended procedures. 2.Locate the jumper in the motherboard. If you do not have your motherboard documentation, locate a single jumper near the CMOS battery. In some laptops, the jumper may also be labeled in the motherboard. Put the jumper setting to "Clear" and reassemble the laptop. 3.Turn on the computer and hit "F1" when the "CMOS checksum error" message is displayed. Navigate through the BIOS settings interface to load default settings and apply a new password.
Using Password Remover 1.Download a software-based BIOS password cracker. There are numerous free programs able to recover or delete CMOS or BIOS passwords from virtually all motherboard brands. Download the file from a trusted source and save it to the desktop. 2.Burn the installed file to a CD using image burner software. Insert the CD and access the password remover tool. 3.Note the password or use the program to set a new password.
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flashing BIOS is not needed in your case. The only way to solve your issue is to make the mobo work. When working, thats the time you can use utilities to flash your BIOS.
For now, visit your CMOS Setup by pressing DEL or F2 at startup. Then choose LOAD SETUP Defaults.
to be honest if you have tried to re-flash your bios, and it did not work you still either have hte wrong version or the disc drive your using to flash it from is faulty. try another floppy drive/disc and try again.
if that dont work. to be honest it's not worth getting it repaired just go out and spend £30-40 on a new mobo.
sorry i'm not more helpfull but i dont believe it's worth spending that much time and effort on an old system like that with this kind of problem.
good luck to you. let me know how you get on ok.
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 hope this helps
Reseat your ram modules and remove the 2nd hdd
If same thing , then reset the Bios to default ,save and exit
If same thing ? assuming you have more then 1 stick of ram,, try booting with 1 stick removed . to eliminate ram modules being bad
then switch ram untill you have verified ram chips are or aren't bad
Hope this helps