Varying stop code is usually a sign of hardware issue or configuration problems. Are you overclocking the CPU ? . All CPU cores seems to be running on smae speed which is usually a sign of overclocking. Please disable the OC at least as a test. You won't loose a single FPS in any game by disabling the OC. Almost all PC games are GPU centric and you got a fairly good graphic card.
First reset the system BIOS and load default values.
Secondly, you should set the RAM timing values properly. Enter the BIOS setup and set the timing values and voltage exactly as printed on top of the module or specified on the manual. Let me know how the system works after these steps.
Edited by Anshad Edavana, 16 November 2013 - 12:59 PM.