In middle of operating my desktop pc (preparing to print off a web page) suddenly went pffffft and smoke began filtering out of the tower - smelt of burning electronics. Printer stayed on. Immediately switched off at mains.
Acrid smelling smoke continued for 5 minutes or so.
Short circuit somewhere I'd say but where? Is this sufficient info for someone to diagnose and guesstimate if its a write-off or salvageable?
Much appreciate advice. Thanks
You should easily be able to remove one of the side panels and have a look inside - the burnt bit should be easy to spot.
The side panels are normally held on by a machine screw with a cross-head slot on the back. They usually slide off backwards when the screw has been removed.
Sounds like the power supply but be warned that voltage surges produced by a self destructing power supply can damgage the motherboard etc. Power supplies are not expensive but it would be worth while borrowing one to see if the pc still works as you won't want to buy a power supply for a dead pc. If you have to buy a new one make sure that the connectors to the various components are compatible.
If it is the power supply, which is most likely, here is some info at the the following link on how to remove and replace with new, which is basically isolate from mains electrics, remove computer side panel, note location of all the current internal power supply cable connections locations then disconnect them, remove 4 power supply retaining screws to remove the Power supply unit. Replace with new unit, reconnect cables and test if all ok,