I have a little problem in overclocking Core 2 Duo E4300 as i managed to reach 3.11Ghz. I knew that E4300 can achieve much more than 3.11Ghz. Here is my PC spec. 1. Intel core 2 duo E4300 with Artic Cooling Freezer 7 Pro 2. Gigabyte 965P-DS3 3. Kingston 1GB DDR2 667 MHz CL5 RAM X 2 4. Asus 7600GS TOP 5. Western Digital 160GB SATA2 6. Windows Vista Home Premium I disabled EIST and C1E as well as others that might affect the OC, but i dont know if i left out anything. I set my RAM multiplier to 2 so that it''ll give my FSBRAM ratio 1:1. But this only works till 3.11GHz = 345 FSB. I decided to raise the FSB a little more just 5Mhz, the com works fine, but vista could not detect my CPU speed, CPU-Z could not start. What exactly is the problem? I dont think is the VCore or any other voltage causing the problem but you guys could tell me what are the appropriate voltages to set just in case i'm wrong.