I just did a search for this error and I see what you mean, there are dozens of different solutions. Had you made any changes just before this occured?
I think the best place to start is to begin by disconnecting everything from the mobo apart from one memory stick and the monitor. This includes disconnecting the hard drive/s, CD drive/s, keyboard, mouse speakers, printer, any USB device and unplugging the cable that goes to the front USB connections (if you have any) any cards including graphics (unless you have no onboard graphics to connect to the monitor) and any card readers or floppy drives. Then try to boot and see if you get the post screen or that error again.
Let me know what happens.