yeah, what makes you think only the CPU is fried?? if water has been spilled on it most likely its the motherboard. That will take an hour to replace, depends on the model though, could take longer, especially if your not familliar with laptops. HP charge an arm and a leg for their parts also. If its an older model, you may want to look at getting a new one, put your hard drive in an external case to transfer data over.