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BIOS upgrade problem on DZ77GA-70K desktop board

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I tried to upgrade my BIOS (0021) to actual version (0066). I was successfully download the express BIOS update tool, I started on Windows 7. After the reboot the computer switched on for about 10 sec after switch off and switched on for 10 sec ... About 5 min I switched off the computer. I wait a 2-3 min after switch back. In this step does not effect for a 10 mins. After this step I tried the BIOS recovery procedure (download the GA0066.BIO file, write to an empty CD, put to the CDROM, switch off the computer, unplug from line, remove the BIOS recovery jumper, plug to the line, switch on... I see the power led flashing and CD is work (LED on CD flashing), after a few mins the power LED still continous light and CD is stoped, and computer is restarted and the monitor I see the "intel icon" on the left upper corner, after my monitor go black. I wait a few mins, and switch off (unplug from line etc.) my computer plug the jumper to "normal" position and switch on. The monitor is black, and board beep 3 times (beep-silence-beep-silence-beep long silence and beep-silence-beep-silence-beep long silence ...). When I switch on the computer a very short time I see "14" after continous "15" code on the 7 segment display on board.

 

What Can I do in this situation for working computer?


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