No, I'm not really a newb to PCs but boy did today make me feel like one. Around 3pm this arvo I smelt something that distinctively resembled PCB burning. I thought 'OH SHIT, the PSU/CPU/Mobo is about to die!', seeing how I had to replace the CM Excalibur yesterday with the slim Scythe fan on the 212+ in order to fit the extra RAM into the slots. So I quickly tried to shut down the computer. Seriously, every second you spend waiting for it to turn off feels like an eternity. So I did the ol' sniff and inspect test. First the CPU. Nothing. Then motherboard... ok, nothing again. Then PSU, slight lingering smell of burning PCB but not strong enough to suggest something was wrong with it. So I went on to inspect everything else and was dumbfounded when I saw that everything looked ok. Was really puzzled at this point and decided to switch the PC back on to see if the malfunctioning part would emit the smell/smoke again. For 5 minutes, nothing. Then I saw that the Scythe fan was reving up and down continuously as the temperature sensor on the Lamptron touch fan controller was going nuts (kept switching between the 34/35C which made it go from 45->100% then 100->45%). So I adjusted the setting so it the fan will only go to 100% if the case reaches 40C. 'Fixed!', or so I thought. For the next 3 hours I kept smelling this lingering smell of burnt PCB and thought nothing of it because the smell really does linger for ages, especially with slow moving air - like in my room. So it was about 7pm now and I went out to get some food and beer. Came back to find that the smell had gotten stronger. Didn't really think much about it... I mean come on, beer + fish + epic chips + calamari rings = win. Fast forward 'til now. Did a session of CSS and noticed that one of the cathode lights was out. I thought 'Great, I recently bought the light and now its dead... >_<' - it was in the most awkward part of the case as well. I turned everything off again and took out the inverter. I kid you not, but aluminum bar that runs across the Thermaltake Armor case (practically shoved the inverter in there) was burning hot and gave myself a bit of a scolding on the tips of my fingers. So I pushed the damn thing out with a pen to find that the plastic had become pretty soft. After I got the inverter out I noticed that the plastic had warped pretty badly as well as some scorch marks on the side. I opened up the bloody thing and noticed that 3 capacitors had blown causing the main inverter block to slightly melt the plastic that was surrounding it and charing the PCB itself. And to think that was going to leave the PC on all night downloading Steam games... not to mention leaving it unattended whilst getting food. Think I may have dodged a bullet here as it could have been a lot LOT worse. Lets see how long the next inverter will last... seeing how my bag of inverters are now approaching 6 years old. =_= tl;dr - burnt inverter... that is all. EDIT: And excuse my lousy photography skills. I really do need to invest in a properly digital camera... instead of using my phone.