Hi all,this is the system I am getting:Intel core 2 DUO E8400 3.00G/1333/6M/S775Asus Motherboard P5K-E with WiFiIntel Core 2 ICE Fan with Heat Pipeadditional fan swap for heat pipe - 90mmPrizion Qualified 4GB DDR2 RAM 800mHz - Kingston (2 x 2GB)Memory cooling via "heat sink" (for 2 chips)2 x Seagate 320GB 7200rpm Serial-ATA-2 Hard Drive with anti-shock with 16mb cachenVidia GeForce 8800GTS OC 512MB PCI-ExpressLogitech Cordless Desktop MX3200 Laser - Keyboard / Mouse ComboInfiniti2 series Black tower casing ATX Form Factor -- Silent SeriesAntec TruePower Trio 650 - Power supply ( internal )2 x Aluminum Fan with Dual Ball Bearing 120mm Chassis Fans / 40,000 hrs . 79.14 CFMHigh Speed DVD + / - RW Multi-Format at Double Layer CD & DVD BurnerMicrosoft Windows Vista Home PremiumAltec Lansing FX4021 - Multimedia Speaker System / Subwoofer & Remote controlMatrox TripleHead To Go - Digitalone question , is it worth it to OC the E8400 to 3.4-3.6 for the extra FPS or not. I never did OC before, and I don't want to blow my system. So is is it better to leave it to the original clock, or I will gain performance.If yes where can I get help to OC.Thanks for any helpWalouigi

I googled 'overclock e8400' and came up with a lot of hits on how to overclock this cpu and problems associated with it. I overclocked by Intel Dual Core Extreme X6800 from 2.93GHz to 3.73GHz and it is stable (it was factory overclocked to 3.46GHz). I have run FSX at 2.92GHz and 3.73GHz and see a little performance boost. If you limit your FPS to 24 and it runs at 24 both at 2.93 and 3.73, it's definitely hard to tell. The few threads I read at the Google sites above indicated some individuals were able to oc up to 3.5GHz. That's not much higher than where you are now at 3GHz so I doubt you'll see any FPS increase to warrant overclocking. My 2 cents worth and maybe someone with a similar system as yours can give you more positive info.Best regards,Jim

The E8400 uses a 9 multiplier on a default 333 FSB to get the preset 3.0Ghz CPU speed. That P5K-e mobo will run a 400Mhz FSB, no problem. So, bump your CPU volts up to ~ 1.35v and reset your FSB to 400mhz. Leave the rest in auto. I have the same board and it runs at 400mhz, 24/7. The system will initially boot with the CPU at 6X400 (or 2.4Ghz) because of the mobo's Speed Step function. Load it with Prime 95 and watch the action with CPUZ. The multi will pop up to 9X. The CPU will then run at 9x400 or 3.6Ghz and the DDR2-800 ram will run at its guaranteed 2x (DDR) X 400 (FSB) = 800mhz. The CPU O/C Will make a difference. The ram's speed is just along for the ride and will make No difference. FSX needs all the Single Core Mhz it can get. The second (or 50th) core will not help FPS. In-flight, extra cores only help loading textures. O/Cing is free performance. You might as well use it.

Thank you all, for your help, will follow these steps and hope all will be fine.Best regardswalouigi