I'm using an AMD Turion64x2 dual-core processor in my laptop, and I'm having issues with it whenever I try to play a game. It has a 160 Gb HD, 2 Gb RAM, and the processor is supposed to be 1.6 Ghz.
Now here's the confusing part. When there is no game running, the AMD processor clock I downloaded says that the processor is functioning at 1.6 Ghz. But when I open a game, it says that the processor is now at 800 Mhz, and believe me, the game is running at 800 Mhz (lag). I double-checked this with the system monitor, and it says that the game is only using one processor to run, even though it has access to both. In case it helps, the games I've tried playing are Republic Commando, Fable - The Lost Chapters, and Supreme Commander - Allied Assault.
The problem originated after I noticed that the system info stated that the processor was at 800 Mhz, and fixed that by resetting my power options (I'm not sure how that solved the problem, but it did). It now reads 1.6 Ghz all the time.
The strange part is that Republic Commando and Fable worked perfectly before I reset the power options, but now they're riddled with lag sessions, as if the computer has to buffer once a minute.
I've tried everything I could, such as rolling back and updating drivers, reinstalling the games, and basically searching the computer for anything that could be limiting the processor in any way, including the power source (which has an input of 100-240V, btw), but this is beyond me... I have no clue.
Any suggestions?