11.02.2010, 12:50
With the latest bios update on your P5K, you can run an E8500 which is stock at 3.12Ghz and with no effort at all can be overclocked to 3.6 on stock heatsink and fan. If you put on an Artic 7 Freezer you can go to 4.0 Ghz, no sweat. Assuming of course that your RAM is fast enough. That chip has a 9.5 multiplier and will be stable.