>I find it hard to believe that a one year old processor would fail, guess it could.
Well, it’s hard for a computer to do this without a CPU that works: “If I do this for 10 times then it will finally startup and all is fine…”
You could try reseating it. I would start troubleshooting likely things by swapping components. Reseat the memory again. Try other memory. If you are using more than one memory module, try using just one. Check for a loose screw under the motherboard by picking up the computer and shaking it. The motherboard itself could be defective. Look for screws securing the motherboard to standoffs on the chassis that are not snug, but do not over-torque them. It could be a defective power good signal from the power supply or something else wrong with the power supply. The speaker circuit on the motherboard could have a bad component or a speaker wire is shorting—that will usually cause sparks. Larry