Hey all, I'm having some problems with my desktop today, but I havent had to do this kind of a trouble shooting session in quite some time, so I am rusty and could appreciate some help. I have a hexacore x79 Core i7-3930k which as been running at a constant overclock of 4.8Ghz since it was brand new in 2011. It has been a champ this entire time, which is why I have never felt a need to upgrade. The plan is to upgrade to a 7nm AMD CPU this summer, so I'm really hoping it lasts me until then. I had been doing some several day long video encode jobs queued in handbrake under Linux, when I came back to my desktop after work today, it was strangely sitting on the logon screen rather than being booted up and chugging along on the 3rd day of my 100% load encode. Odd I thought. I wonder if there was a power outage or something. I powered it back up, restarted handbrake, and got my encodes going again. Went to the kitchen to make a drink, but when I get back to the office its sitting on the logon screen again, but this time there is an acrid electrical smoke smell in the office. Uh Oh. I open up the case, with my flashlight in hand and look for obvious problems. None found. Decide to power it up again. Boots up fine. I log back in. System appears to be behaving normally. All normal desktop type stuff appears to function. Until, I put another heavy load on it with Handbrake. This time I stayed around to see what happened. It runs for 30 seconds to a minute, then there is a brief power down and spontaneous reboot. At this point my nose is numb to it, but I'm guessing that burnt smell reappeared. A test with Prime95 confirms that it is not just some weird Handbrake thing. It goes down the instant Prime95 fires up its workers. Just do be on the safe side, I am going to stop using it for now until I get this figured out. At this point I'm guessing it's probably my power supply, based on the symptoms. This would make sense. It's a Silverstone Strider ST-1200 Gold I bought back in early 2011, so I've gotten 8 years out of it. My theory is that the PSU was already getting tired with its old caps, and I went and did something silly, like run a 3930k on full load at 4.8Ghz and 1.445v for 3 days straight, and that put the nail in the coffin. Does this sound like a reasonable diagnosis? I don't have any spare PSU's laying around powerful enough to power my desktop, so I can't swap it out and test. Are there any other diagnosis steps I should take to confirm before I order a new one? If I order a new one, any recommendations for good high end PSU's today that won't break the bank? Right now I'm leaning towards the 1200w Seasonic Prime Platium. I know those PSU calculators are guesstimates at best, but punching in my particulars it says I need 915W, so staying with a 1200W unit seems to make sense, unless I'll need a bigger one for a Ryzen 3 or Threadripper in June (I plan to decide when I see what chips they release and the particulars of the x570 chipset when it surfaces. I'd appreciate any input!