First, here is my build:
PCPartPicker part list / Price breakdown by merchant CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor (Purchased For $409.98) CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler (Purchased For $119.99) Motherboard: MSI Z97-G45 Gaming ATX LGA1150 Motherboard (Purchased For $164.99) Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory (Purchased For $148.00) Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive (Purchased For $129.98) Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive (Purchased For $129.98) Video Card: Asus GeForce GTX 980 4GB STRIX Video Card (Purchased For $679.99) Case: NZXT H440 (Black/Red) ATX Mid Tower Case (Purchased For $126.90) Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply (Purchased For $129.99) Keyboard: Logitech G710 Wired Gaming Keyboard (Purchased For $149.99) Mouse: Logitech G502 Wired Optical Mouse (Purchased For $79.99) Headphones: Logitech G430 7.1 Channel Headset (Purchased For $54.99) Total: $2324.77 Prices include shipping, taxes, and discounts when available Generated by PCPartPicker 2015-05-24 10:19 EDT-0400 It's a pretty long story that I have to tell since I think that the problem could be from different sources, so here it goes: When I first built my PC, I ran prime 95 and got really high temps on my CPU (85 avg, 92 maximum). I was pretty surprised because I have liquid cooling. So I decided that I won't overclock the chip since the temps were so high, at least for now. Later on, I turned on the XMP profile on my RAM, and there was a feature called "Memory Try It!" in the motherboard BIOS, so I clicked on one of 9/10/11 performance and selected 2133 (the lowest option) and the computer gave me a memory error and wouldn't start. So I went back into the BIOS and turned on XMP (which boosts the RAM clock to 1600 MHz). I got the same error and the computer wouldn't start. Then I went into the BIOS and turned XMP off, the RAM clock dropping down to 1333 MHz and the computer started fine. To confirm the problem, I turned on XMP (again) and this time the computer started. Fast forwarding to last week, I thought that I would give overclocking my CPU another chance. I watched Linus' devil's canyon guide and set the clock to 4.4 GHz with 1.2V core voltage. I ran AIDA64 and got a crash. I notched it down to 4.3 GHz and it overheated to 100 degrees quite a few times. I accepted that I was doing something wrong. So I gave up and flashed my BIOS, turned XMP back on and turned on OC Genie (a MSI motherboard BIOS feature which auto overclocks the CPU). I didnt run any stress tests as I assumed that OC Genie used adaptive voltage. Every thing was fine for a while, but after gaming for an hour, my game froze. So I had to disable OC Genie, but kept XMP on, the same settings that kept my PC stable for months. I started gaming and everything was fine again. Then I started browsing the web and my browser (Firefox) crashed multiple times. I thought it was just a bad update for firefox. But then I launched Far Cry 3 and I immediately got BSODed, with the MEMORY MANAGEMENT error. I tried rebooting and got this error. I turned everything off, and reset to the factory BIOS settings and still got the same error. So my OS is definitely fried. I know I can just fix it with a Windows 8 USB but I know that this is just a rebound error from my previous problems. I know the problem is one or more of my CPU, RAM or Motherboard. So before I start writing any angry emails, which one of these is most likely causing the problems? My GPU is over clocked and has been stable for months at 1475MHz, so I doubt that caused any of the problems.