I built this system March 20 2015, it has perfectly fine except for a faulty power supply that would fail whenever it would be put under load, after a while my harddrive would act weird, simple tasks on windows would max out its usage and the transfer rate stuck at around 20mb max... i am guessing that it is failling and have come to see if anyone has a different opinion about what may be happeneing. I benchmarked it on crystalmark, and compared it to my friend's identical hard drive, which shows that mine is clearly not running optimally. My harddrive has been defragged multiple times.
Specs:
Cpu: i5-6600k
Gpu: GTX 1060
Motherboard: Gigabyte Z170 HD3-P
Psu: EVGA 650w
SSD: Kingston 120GB
HDD: Seagate ST1000DM003
Crystal Mark Benchmarks:
http://imgur.com/a/IMUmX
Specs:
Cpu: i5-6600k
Gpu: GTX 1060
Motherboard: Gigabyte Z170 HD3-P
Psu: EVGA 650w
SSD: Kingston 120GB
HDD: Seagate ST1000DM003
Crystal Mark Benchmarks:
http://imgur.com/a/IMUmX