Top of PSU - the insulation on the inductor is not paper
Bottom of PSU
This is a PSU from a Infrant/Netgear ReadyNAS NV+ system. The PSU likely failed because of design problems instead of faulty components; the failure seems to be a common event on certain manufacturing batches.
Notable features on upper picture: 3 bulged capacitors, 1 inductor with burned insulation. Notable features on lower picture: signs of overheating, jumper wire in solder.
Credit: Swish from EFnet.
Xbox with charred PCB
Xbox with charred PCB
Two views of the same xbox board that not only lost the blue smoke but also lost the black smoke. Credits: Daniel Celion from Sweden.
A simple analog sequencer referred to as a baby 10 (step) sequencer is shown with a ICM7555IPA 555 timer cracked down the middle. Credit:
This appears to be an Xbox revision 1.1 where the power supply failure caused significant damage to the PCB. The vented capacitor in the picture is a 680uF/16V capacitor which shorted, damaged the FET, and led to the failure of the power plane. Ideally the power supply should sense failure conditions and shut down. The FET was a Philips 21N06. Credits: Ahmad Tabbouch of http://ultrakeet.com.au.
DP-40205 top
Exploded FET
These pictures come from a Dynapower USA DP-40205 400W power supply. It appears the standby regulation failed and took out the FET pictured above and also the capacitor and resistor near the top of the fan. The exploded piece of the FET was rattling around the power supply when it was opened and the part that remained on the board was loose. It’s suspected the capacitor damage was from overvoltage when the regulator failed for unknown reasons. Credit: http://blog.kevtris.org/