my grama also was not having balls and pants...
what you wrote as no sens , like the 2 others after your "post" : risk is big for all to be killed and very dangerous .
if he plug a psu and the board is dead that can kill this new psu .
Only if the new PSU has no protections of it's own, which all of the ones I suggested do have. Any PSU worth it's salt is going to have a short-circuit protection in some way, be it an OCP (Over-Current Protection), a UVP (Under-Voltage Protection) or an OPP (Over-Power Protection). They are specifically designed to protect the PSU and the rest of the components, so it's perfectly safe unless the new PSU has arrived defective in the first place, or it's a piece of garbage not worth $10.
I'm not sure this is true. I will agree however that any time a PSU goes out, there is risk of component damage. But the rest of your original post was questionable, especially the wattage figures.
Yes there is some risk, but only when the PSU's secondary stage goes out. See, the PSU has two main stages that are not in galvanic contact, meaning they do not exchange electrons among themselves, thus no current flows directly between them. The primary stage takes the incoming AC (alternating current) from the wall and converts it into high-frequency. low amplitude change pulses of rectified AC which acts approximately as DC (direct current). It is then sent to a transformer which stores the energy of that current as a magnetic field. When a magnetic field is variable with time, it is capable of inducing current in a conductor, proportionate to the change (both in intensity and the frequency). This phenomenon is used to induce a current with a lower voltage in the secondary of the PSU, which is further rectified into more closely approximating DC.
Knowing this, it's easy to accept that when the primary goes out, since there's no way for the AC from the wall or the primary approx-DC to reach the components, the net effect is that of the primary simply stopping the power delivery. No damage to the PC. Same as when you pull the plug from the wall, or flip the I/O switch on the PSU.
When a component in the secondary goes, however, things can get a bit ugly. If the PSU's protections don't have enough time to react, damagingly high voltage can reach the PC components, destroying some of them.
The flashes that I saw came from the power supply. It was orange. I'm assuming it was a capacitor
This is a sure-fire (pardon the pun) way to determine that the PSU's primary is what went. Most probably the APFC MOSFETs. Not a capacitor. The "explosion" you heard and the flame color correspond to the dielectric breakdown and subsequent overheating and partial vaporization of the MOSFET's substrate that houses the depletion region. You can read up on this all over the web, but an overly simplified story is that the depletion region is a valve, controlling how much current flows from one of the MOSFET's terminals to the other. When this valve gives way, an unstoppable torrent of electrons tears the MOSFET apart, in a spectacular fashion. This is only ever possible at high voltage and high input power, which the incoming AC provides. The incoming DC on the secondary is both low voltage, and relatively low power (compared to what the AC outlet can dish out for up to a second, which is an eternity for a MOSFET), so when something burns there, it isn't as violent nor as loud. Thus a PSU whose secondary goes out usually dies silently.
I'm 99.9999% sure that your components are alive and well.
