nvm, i was able to understand and figure it out my self.
and with that i was able to test my x86 setup.
using 2 more pc running from DOK x86 routerOS.
with P4 3.06Ghz HT, 2GB 800Mhz, HP NC360T Dual Port PCI-E x4
TCP test, 1600Mbit (total 3200Mbit, 360k pps) while the CPU was at only 65%.