System Amd64 3000+ (Winchester) DFI NF4 ultra-D 512MB Balistix pc4400 Radion x800xt 2x western digital raptors in raid 0 Antec True Blue 480W Windows XP service pack2 Symptoms: Recently my previous motherboard a MSI K8NF4 platinum failed and died. I received the DFI through a RMA from overclockers.co.uk. When I installed my new motherboard I got a CPU error flagged up by the onboard diagnostics on the DFI motherboard. The Computer will not even POST I receive no hardware beeps i have tested my RAM in my father’s machine to test if it was the ram that had died as well but it works perfectly. Unfortunately my fathers PC is not a 939 board so I cannot cross-examine the CPU. But all evidence points towards the failure of the CPU. Therefore I would like a RMA for my CPU. As it is a full retail pack that includes a 3-year manufactures warranty. I purchased it in early January this year so it is inside the warranty. Yours faithfully Sam Corlett samjcorlett@tiscali.co.uk