OK thank you.
What cooling are you using and have you reseated the cooler as part of your problem solving. An uneven pressure when mounting the cooler can cause heaps of issues with memory as the pins of the socket slide off the CPU pads.
And then.
Please follow the fist part of the memtest86+ guide (in my sig) and that way we will have determined for sure if the board is defective.
To help us help you - please provide as much information about your system and the problem as possible.
