Hi people! i know that its not a common problem this.
I see that when the server turns on, shows a red message and dissapears, and when i put ALT+F11 i see the L2/L3 cache error:
i dont know if this could help, but well, this is what i see. Also, with this message, i can manage the host, turn up virtuals (with 4 cores or less) without any problem, really rare ... :S