bwinzey :
Power supplies don't die of age. Power supplies break when they are:
1) under constant stress for a long time, and components overheat and burn
2) overheating due to dust buildup and/or the cooling fan breaks due to age
3) running during power surges
Your power supply is made by a brand which seems, although not popular amongst PC builders, of high quality. They make many other types of power supplies, including medical PSU's, which have to be of extreme quality (otherwise they wouldn't be allowed to sell them).
It also seems good, because it has an 82% efficiency. It also says that the power supply can endure 100,000 hours running at 100% load. Correct me if I'm wrong, but that's 10+ years.
A lot of this is all fluff, though. Has 82% load under what load conditions? 50% load as tested by the 80+ organization? Only thing is, the 80+ organization’s tests put a decent amount of load on the minor rails, efficiency can vary in a real-world system in 2016 where the minor rails are near useless. 100,000 hours running 100% load. A lot of stuff depends on the environment it is in, and what precisely is defined as 100% load. Personally, I don't take the word for it when companies say stuff like this. But it could very well last that long for all we know, who knows? I don't really know what the capacitors inside it are like.
I know their website advertises medical use. But I'm sure there are plenty of "mdeical PSUs" made by Delta and the likes in basic Dell machines that hospitals probably use. Delta is about as professional as it gets for commercial power supplies.
Also, running a PSU at 100% load for a long time, I don't exactly see how things are going to " burn" per se. That's like saying a bagel won't cook in 100F weather, but if a bagel is in 100F weather for 10 years straight, it'll be burnt and cooker. no, it'll just remain warm as it was from the start.
Most common failures you'd see in PSUs:
1) Capacitors, easily replaceable
2) Fan, needs re-oiled or replaced
3) Connectors on cables spreading and shorting out either from heat or humidity (why gold-plated connectors are the best on cable ends!)
4) Resistors, transistors, anything?