I have a PC that makes no beeps on startup and I have no video. I am thinking the CPU is damaged because the fan wasn't working. I replaced the fan and when I turn it on I still have no beeps and no video. I am trying to startup with no HD, CD, RAM, still the same (fans are working ok). So I am thinking the CPU, but I need the model of the mobo to see how I can replace it. On the mobo I only hace 15-P44-011131 and on top of this there is a V:1.1 C. I already googoled this number but I come with no model.