It's an Athlon 64 3000+ 939 90nm.
CBBID 0508.

It doesn't stabilize @ 2400MHz at even 1.64v.

I don't know what more I could do.

The memory is stable and the chipset didn't pass over 45ºC.

With this settings there is an error at ~5~10% of OCCT test.

PLEASE HELP ME!! I am getting crazy!