Originally Posted by LawlessPPC

more than 1 core is working look in activity monitor you will see a graph for each core
the memory reading speed is down to applesmbios.kext basically it doesnt see ddr so it doesnt double the figure it gets.

Info about the motherboard? just go to manufacturers site

you should only do apple updates through apple utility without patching if you are running the voodoo rc1 kernel

but you must make a backup of this kernel in a different name so when you install the updates apple will over write the kernel with a new one so you just tell the bootloader to use your renamed 1 then you can recopy it back with the correct name