Only obtain the BIOS update from the computer manufacturer or motherboard manufacturer. Also, do not shut off or reboot the computer until the BIOS instructs you to do so. Boot the computer to the black screen with the Checksum error. Every attempt you make to restart your system, fails.
CMOS batteries don’t last a lifetime, and after a few years, they don’t provide enough voltage to boot the BIOS, and the problem arises. There are not many reasons for this error, and they are very relevant to the BIOS itself. However, two different causes can still be identified, and all troubleshooting methods are based on them. Sometimes, if the computer does not power down properly, https://wikidll.com/microsoft/vbscript-dll the saved number might not match the one generated during a system restart.
key if your computer was built before 2006 (XP or earlier). The error that appears depends on the type of BIOS used. Any of these error conditions indicate that a Basic Input/Output System (BIOS) test failed.
In any of those reasons, the values of the BIOS will be corrupted and no longer the boot process takes place. Press and hold F2 or Del key to enter BIOS Setup Utility. being unable to supply required power needed for the computer to boot.
See the BIOS and CMOS definitions for further information and related links. If you cannot enter the CMOS setup, or the computer no longer keeps its BIOS values, the BIOS update may be corrupt. In this case, we recommend updating the BIOS again or reverting to an earlier version. If you can do it, then you may boot into Advanced Startup Options and perform the automatic repair. The Automatic Repair feature can detect and fix the issues that prevent the computer from starting normally.
Shutting down the system properly during its next boot should fix this problem. Try a bootable floppy or CD with the BIOS files and the AFUDOS program on it. Probably the restore program is looking for a bootable media. When you get the command prompt, run AFUDOS following the instruction from the manual.
key repeatedly, about once every second, until the Startup menu opens. Then press F10 to open the Computer Setup program. After replacing the battery, restart the computer to see if the error continues.
"3. CMOS jumper" According to manualslib.com/download/10121/Asus-M2nbp-Vm-Csm.html, page 31, the jumper is in the correct position (pins 1-2) and should not reset. Be sure the new battery is making good contact on both poles. I went thru several rounds of contact cleaning and pin bending/unbending until it finally worked for me. If that doesn’t work, try (re)flashing the BIOS with the latest version offered by the Motherboard manufacturer (Asus). Reset the BIOS to defaults (option in the BIOS), save and reboot.