Problem With Upgrade 433

hello
i have routerboard 433

When I update the router board to V 5.8 had been cut off electricity in the residential area.
Now, when I open the router board for Broken I do not know what to do please help as soon

Use Netinstall

http://wiki.mikrotik.com/wiki/Manual:Netinstall

Thank you for your interest
But the router board works, but I do not see on the network or winnbox and tried hard to follow the instructions to reset the factory, but to no avail

Exactly. Use netinstall to completely reset the router.

How can I connect the router board, my computer does not know how it can be connected so please explain?

You need a serial cable (RS232) to connect you pc to the routerboard.
Then connect you pc to eth1 of routerboard.

Please read the howto of netinstall:

http://wiki.mikrotik.com/wiki/Manual:Netinstall