This has been happening for I think about two months now.

CPU: AMD FX-8350
Motherboard: Asus Crosshair V Formula-Z
Memory: Patriot Memory, 2x4 (8 total)
Graphics: XFX R9 290
Hard Drive: Old Hitachi 1TB (No clue on the actual model, it is fairly old now)
Then another Western Digital Velociraptor 500GB 10,000 RPM which has FFXIV on it by itself.

Worth noting all drives are very regularly defragmented.