gpu or cpu?..or mem? Spoiler CPU: 270Mhz X 14.5 - 4X cores 3915Mhz, HyperTransport /x8 - 2180Mhz with voltage 1.65, memory 1:3.33 1800Mhz 8-8-8-28 1T + 0.5vol. OC through m/b BIOS. GPUs/on both: core 720Mhz, memory 1188Mhz, shader 1728 with voltage 1.35. OC through edited reference bios. but memory is overheating sometimes and right now, i prefer set it to 1:2.66 1600Mhz 6-6-6-22 1T default voltage, with cpu 300Mhz X 13(3900Mhz), HT /x7 2100Mhz and with voltage 1.7. CPU in both ways doing just fine.