PSU or UPS Problem? HELP!

Computer Type: PC/Desktop
System Manufacturer/Model Number: Home Built Desktop By DataTech
OS: Windows 7 Ultimate X64 SP1
CPU: Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard: ASUS P8Z68-V PRO/GEN3
Memory: 16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card: ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card: Onboard Realtek 5-1
Monitor(s) Displays: Samsung P2570HD
Screen Resolution: 1920x1080
Keyboard: E-Z Eyes, bright yellow keys with large characters
Mouse: steelseries SENSEI Laser Pro Gaming
PSU: Corsair HX650W
Case: Inwin Dragon Rider
Cooling: Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Hard Drives: Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
Internet Speed: 48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Browser: IE 10, Opera, Pale Moon if needed
Antivirus: Norton Internet Security 2013
Other Info: 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.