MoBo then, CPU now. Hello, GSM. Yep ! Still going that Presario. I was wondering if you can tell me if I can upgrade the CPU from a 950 MHz to a much better one. On eBay, they have some that go to 1800 MHz, all socket A, 462 pin, Athlon. The question is: these are 333 FSB and my MoBo is 133, with 133 RAM ? Will this work, will it bring down the CPU to the available rate ? Picking your mind now. Thanks a mega. JP aka handcuff.