Hello,
Thank you for the speedy response, I had a gut feeling it was the memory, I was not able to return it under warranty as I was deployed oversees for a long period of time.
Reference your advice on removing RAM sticks, will it also work if I just remove one RAM stick and see if it runs okay, then swap it over continuously until I find the culprit RAM? (i.e leaving 3 sticks of RAM inside)
I will give it a shot on the weekend and will let you know how its progressed, many thanks for the advice!
Have a great day!