Cantona7, did you try 1.45 volts? Are you running the memory at 400Mhz or 533Mhz? Your 550BE may be a faulty quad-core Deneb. Do you have the stepping?
I havn't yet tried 1.45 volts but i will when i get a chance later tonight. i've tried running my mem at 533mhz even though it is but my system crashes when i run it at that speed therefore i have to run it at 400mhz???
My stepping number is A929APMW i'm pretty sure. But the thing is i don't know how it could be faulty when it was running fine for over 2 weeks no problems what so ever and then all of a sudden stop working, doesnt make sense.
When i run cpuz it takes a while for the info to appear when its running on quad but straight away when on dual??
I ran amd overdrives benchmark and it give me the same performance score of about 9300-9400 when an overclocked dual is at 3.45ghz as a quad at 3.1ghz if that makes sense???