I just bought a bunch of upgraded parts for my system and then came to realize that my PSU is the longest living component I have. PSU information: XFX ProSeries P1-1050-BEFX link: https://www.newegg.com/Product/Product.aspx?Item=N82E16817207021R It is an XFX 1050W fully modular PSU. I bought the power supply on March 26th, 2013. It has powered my sandy bridge i7 system with dual gtx 680 lightning cards, my i7 haswell system fully water cooled with gtx 970, and it is about to be powering an i7 7700k with a gtx 1070. I understand that 1050W for my 2 more recent build revisions is WAY overkill but when i bought it my sandy bridge system, with the lightning cards was capable of pulling over 900W from the wall so at the time it wasn't that much for overkill. It has been running lower power demanding systems since late 2014 but it has been running my main system almost 24/7 save for the brief shutdowns if i went on vacation. I bought this unit because at the time it was stated by other forum PSU experts to be a good quality OEM for a decent price, also I liked the idea of fully modular, however I find myself asking, "how long can it last" As it is the longest running component in my system to date i wanted to get other people's take on their experiences with power supplies and if possible life expectancy of similar XFX power supplies who share the same OEM, (Seasonic I believe), and also see if I can expect it to last quite a bit longer as 4 of the 5 and a half years it has powered my system has been way under even 50% load. Thanks in advance for the replies. -Xander Edited as the original newegg link was redirecting to a 650 model and not the 1050.