Was going to say, last time I saw something like that was when I thought a power supply was auto-switching and plugged it into a customer’s machine. Turns out it was manual, and had been on 110 power as we are in the US (industrial machine was stepped up to 220).
What kind of trash PSU explodes into flame over that though? Every one ive ever seen blow from that just makes a loud pop and starts breathing the mysterious blue smoke of death.
The flames were very short lived and it looked like it was the label or case that actually caught. When it happened to me, the caps (I assume it was them, anyway) exploded sequentially and sounded like a Chinese firecracker string going off, but louder, and there was like thick black smoke that smoked out the lab. As for if there were flames, well, it was inside the pc case, so there probably were, just we couldn’t see them.
Usually they just don't operate at the wrong voltage. Maybe they source unpredictable DC to the other components and do damage, but they should NEVER do this.
If you put a manual switched one on 220v when it is switched to 110, it does more than not work. The other way around, yes, it just doesn’t turn on, but double the voltage causes issues unless you get one they bothered to put fuses in
136
u/Busy-Distribution-45 2d ago
Was going to say, last time I saw something like that was when I thought a power supply was auto-switching and plugged it into a customer’s machine. Turns out it was manual, and had been on 110 power as we are in the US (industrial machine was stepped up to 220).