Laptop Questions? Ask a Laptop Technician for Answers ASAP!
Hello my name is***** am sorry you have encountered this kind of problem, I understand you have replaced the motherboard also removed the battery and turned the machine on with the battery out of the equation. Also you have removed the hard drive and the machine still does not post. There are two things that could be happening here. Either the memory is bad which I do recommend you having the memory tested at a local computer store or by placing this memory in another laptop to see if it posts or the CPU has malfunctioned which they can both cause the same problem.