Are you overclocking the system or having the default settings in your BIOS settings?
Did you check if you have all the latest windows updates? Make sure under windows updates you tick into the lower part where it says check windows updates online, it normally have more updates than the standard updates tab.
Check by pulling one memory out and see if the system works fine and then check the other memory module to verify if either one is providing issues.
I see that you OC the CPU, under default settings do you have the same issues?
Can you verify your temperatures?
Thank you in advance.