Hi,
What test were you running that caused you to receive the fatal error, was it Blend or Small FFT's? AFAIK, Blend stresses a little bit of everything (RAM, CPU), and Small FFT's stresses the CPU and its cache. If you got a fatal error on Blend, it could either be faulty RAM, CPU, incorrect voltages for either RAM or CPU, etc. If it was Small FFT's, I'd like to imagine it was a faulty CPU or incorrect voltages.
What are your temperatures like under load?
Regards,
Patrick
