First computer build not going well HELP

[neonlightdecay]

So I built my first computer in August of 2013 and it works fine except it freezes randomly at random work loads. I ran diagnostics and ruled out the hard drive and the video card so its either the RAM, processor, or mobo (my money is heavily on the RAM).

Mobo: ASRock Z77 Extreme3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

RAM: CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 15000) Desktop Memory Model CMZ8GX3M2A1866C9B

CPU: Intel Core i7-2600 Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000

GPU: NVIDIA GTX 760

HDD: WD 1T 7200rpm black

If there are parts that don't go well together let me know or if some aren't good for gaming please tell me.

 

[Dblkk]

If you think its the ram, then download memtest and test the ram. I just a few months ago kept getting blue screen windows error's, thought it was the ram, ran the test, within seconds I had thousands of errors. Since I had 4 sticks, I kept 2 in and took out the other 2 and ran, then repeated. Conclusion 2 sticks of ram were bad, filed rma and within days had new ram.