my motherboard doesnt start on screen eventought the electricity is on
with this amount of information no-one and truely no-one will be able to help you out...
so please post some more specs like type of mobo and CPU
exact problem and when en how it happened
With out anymore info, we cant give a correct response.
You say electricity is on but is the computer even trying to turn on?
Does any fans start up?
Do you hear a beep after you press the power button (thats if you ever heard a beep from the computer)?
Was there any hardware changes made recently like new graphics card or cpu?
With the current info, i could easily guess 4 things (and there many more things thats could be wrong).
1. graphic chip is dead
2. motherboard is fried
3. Power Supply Unit (PSU) is dead.
4. You made a hardware change. Maybe a cpu not compatible with the motherboard or a graphic card thats to much for your psu.
Well need more info to pinpoint the exact problem.