MooreIsHardcore

No one I've talked to has been able to correctly diagnose my problem. I recently upgraded my CPU from a single core 2.8GHz Intel Pentium 4 to an Intel Pentium D 945 Dual Core 3.4 GHz processor. My Mainboard is an ASUS P5GC-MX Socket 775. 2 GB of RAM. Nvidia GeForce GT 240. 2 frustrating observations I've made since I upgraded: 1) My games and things actually run at fewer FPS than with the old processor. 2) My older Laptop runs games much better than my desktop. Laptop specs: HP Pavilion 6735s. AMD Turion Dual Core 2.0 GHz. 1.74 GB RAM. ATI Radeon HD 3200. Win XP SP3. Things I've already tried to help my computer run better: SpeedFan 4.43 to make sure my CPU wasn't being overheated (runs a cool 40 - 46 C). Updated Graphics Card driver. Turned down all the graphics settings I could. Updated Java, as well as any program / game / application I was trying to use. But even with all this, my games (DDO, League of Legends, Spiral Knights, Team Fortress 2) all run at round 5 - 15 FPS. My Lappy runs at more like 30 FPS. MOST FRUSTRATING THING EVER. I should also point out that whoever installed my Win7 installed a non-genuine copy so automatic updates have been completely absent. Any ideas? Any Tech support desk I talked to said they would have done the same things I did. Please help.