well not much.....coz ma power supply can't handle more than that
i over clocked ma 2.4ghz prossesor to 3.0ghz
266mhz rams to 333mhz
Nvidia 6200 agp gpu over clocked core-350mhz to 410mhz,ram 533mhz to 610mhz
gigabytes Intel chip set are ok i think gigabytes performance are awesome also they are intel chipset boards can be overclocke with out a problems...but I'll go for a asus next time
well they didn't performed well and their chip set can only use about 2 years and then they doesn't work at all.you also can't over clock it that much,it's not stable at all