My arduino uno not work very well to do some actions, (but i could program it ) So I decided to change the micro. Buy two ATmega328P-PU with the loader on ebay . I put one of the new micros  and it did not found appeared the message  "vrdude: stk500_recv (): programmer is not responding" I put the original  and not let me load programs and put me the same error. Now arduino, does not work with any processor, that could have happened? motherboard is broken?  thanks

shorted source power with more than 2 servos. I connect the servos to the Arduino board. Servos and arduino are powered by an atx pc power.(Servos power are conect directly to de source power). when work only one all found well but when work more than one the source power is shorted. I put zener and capacitor in parallel at the input paraleo if any problem was a power surge.. I can't do nothin more

thanks Grumpy_Mike , but another question, how do I connect these capacitors?

Is a PC power, more than 20A for 5 volts. thanks

The servos are connected to an external source, and share the mass with arduino. Arduino handles only single pulses to move the servo.

I have a problem to handle more than one servo. I have three servos, if I connect only one at any pin OWN work properly. But when I try to connect more than one servo simultaneously (each pin in his OWN) the source is shorted and everything stops working. What can be the problem. Thanks for everything.