Basically, my motherboard had a short circuit or something else thanks to the PSU. I bought a new motherboard the Gigabyte b450 aourus elite and a new 700W powersupply. I have tested the motherboard with an Athlon A6 apu and it is working. Should I test my old CPU Ryzen 5 2600X, or is it risky as it could damage the motherboard if it's dead?