My bad, I've included the hardware below. I'm running the latest version of Windows 10. The PSU is 2 years old and has run all of the hardware in the past. I replaced the CPU with the same model. The CPU spontaneously crashed, no lightning or power surge that I am aware of. I was playing Half Life 2, so not particularly taxing for my rig. The GPU has been tested and is not fried. The motherboard seems fine, and all of the other features work normally.
GIGABYTE GeForce GTX 960 DirectX 12 GV-N960WF2OC-4GD 4GB 128-Bit GDDR5 HDCP Ready SLI Support Video Card
Intel Core i5-6500 6M Skylake Quad-Core 3.2 GHz LGA 1151 65W BX80662I56500 Desktop Processor Intel HD Graphics 530
Rosewill Quark-550, Quark Series 550W Full Modular Power Supply with LED Indicator, 80Plus Platinum Certified, Single +12V Rail, Intel 4th Gen CPU Ready, SLI & Crossfire Ready
GIGABYTE GA-B150M-D3H (rev. 1.0) LGA 1151 Intel B150 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard
CORSAIR Hydro Series H50 120mm Quiet Edition Liquid CPU Cooler – Intel Only
Cooler Master Silencio 352 - Silent Micro ATX Computer Case with two fans, Sound Dampening Panels and Multiple Removable Air Filters
HyperX FURY 8GB 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Desktop Memory Model HX421C14FB/8
ASUS 24X DVD Burner - Bulk 24X DVD+R 8X DVD+RW 8X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 24X CD-RW 48X CD-ROM Black SATA Model DRW-24B1ST/BLK/B/AS - OEM
Rosewill RNX-N150PCe - Wireless N150 Wi-Fi Adapter - IEEE 802.11b/11g/11n, (1T1R), Up to 150 Mbps Data Rates, PCIe 2.0 Interface, WPS Supported