Power Supply: What happens after a power surge.
I had a client call me last night and ask me if he could bring me his PC for me to take a look at. I asked him what the problem is and he said, "It just won't boot and it's not getting any power." So, first thing that comes to my mind is Power Supply." I said, "Ok, bring it in." He brings me his PC and tells me that last week where he lives, the water company was putting in some new lines in his neighborhood. At some point they lost power for a few hours. When the power came back, they found serveral electronic & home appliances weren't working. One of their PC's, their boiler, microwave, a lot of light bulbs and a few other things.
So, I open up the PC, everything looks ok. I take out the power supply. Put in a new one that i have a s a back-up... Hook it up, fire it up, (POSTS, BOOTS TO WINDOWS, WORKS FINE) So just for sh!tz and giggles, i open up he PSU, some garbage company... First of all I had to pry it open with a screw driver after removing all of the screws. I finally get it open and I couldn't believe the inside... It looked like every plastic part inside the PSU had completely melted and was at the bottom of the case of the PSU. Wires were melted, charred and burned, their was black smoke stains inside the case, which means that at some point there was fire. They got really lucky here. The only component of this PC that was damaged was the PSU. Which was off, by the way. I ran several tests on memory and CPU and everything seems fine. Optical Drives work, Harddrives are fine... Lucky...
It kinda scares me when I think about what could have happened.
Could have burned down the whole house!!!
I'm assuming that this sugre of power was so high, that the charge remained inside the internal components of the power supply and built up enough heat, where everything just melted way...