You've told us nothing about the computer or what you're trying to do.. Is the operating system already installed? Does this message pop up at start up? Is it an old computer? The error can come up when the motherboard is dying. Or sometimes when the CMOS battery needs replacing. Have you tried removing the CMOS battery for 5 minutes, then replacing it with a new one? The default settings should reset and hopefully it fixes the issue.
Have you installed a new piece of hardware recently?
Or are you trying to install the OS from a CD to a new hard drive? Old hard drive?
Hope this helps and let us know more.
I get only this message on sceen
"CMOS ckecksum error-Dfault loaded"
Please help me sortout this,thanks.