Since this processor is not listed as supported by that motherboard, it means that the processor was not designed to work on that motherboard, the processor is running out of specifications. I would recommend installing a fully supported processor on that motherboard, or buying a motherboard that does support that motherboard.
Ok he actually wrote that message for me. I bought a new processor which under the system tool for compatibility listed the e6700.
and I'm haveing the same problem where the cpu is running at half speed. I just installed it and I dunno if im supposed to change anything in the bios for
this processor to run at full potencial. I did make a booboo trying it myself fooling around in the bios and such and messed up, so I had to clear my cmo's just to get the computer up and running again