Computer trip switches

The above is the humble Power Supply Unit, or PSU for short. Every computer has one, in one form or another - in PCs they're usually bolted into the bottom or top back of the computer and it's where your power cord is plugged in, for laptops, it's your AC adapter.

The stormy weather is the prompt for this small blog - lightning strikes occur and / or power lines/stations go down, etc - During stormy weather, power's a bit dicky.

Inside PC PSUs, there' s an inbuilt trip switch, kind of like your houses RCD. If you've had some dodgy power and / or blackout and your PC doesn't turn back on, it might not be time for a funeral durge, it could be that it's just tripped.

PSUs always have some residual current flowing through them, even when they're turned off, thus, if you unplug the computer from the wall (either at the PSU or at the wall socket) and leave it out for a good 30 seconds - it'll usually reset the trip switch. If this is all that's occurred, then it'll boot back up once you're plugged it back in. If not... well... give us a call.