I have an HP dv9000 and the graphics chip went out so I ordered a new motherboard from eBay. I installed it today and while the computer was still apart I turned on the power and everything booted up fine. I turned it off then I turned it back on and it was still working. I continued to put the laptop back together, but when I tried to turn it on again nothing happened. I had no fan noise, no lights at all. I put in the battery and plugged it up to see if it would charge, but all I got was the battery light on the front of the laptop would flash and I would have to press the power button multiple times to get that. Here are a list of things that I think might be wrong.
1.) Dead CPU? Is there anyway to test this? What are signs of a dead CPU?
2.) The power button board. I don't know why or how this would have broken.
3.) The ribbon that connects the power button board to the motherboard. I tried another ribbon and still nothing so I am thinking this isn't the problem.
4.) The power port. When I plug in the power cord the blue light around the power port comes on fine and there doesn't appear to be damage anywere.
I also took out the motherboard with just the CPU on it and tried turning it on that way, but still nothing so I don't think this is a ground issue. I also tried the old motherboard that I replaced and even that wasn't getting power.
1.) Dead CPU? Is there anyway to test this? What are signs of a dead CPU?
2.) The power button board. I don't know why or how this would have broken.
3.) The ribbon that connects the power button board to the motherboard. I tried another ribbon and still nothing so I am thinking this isn't the problem.
4.) The power port. When I plug in the power cord the blue light around the power port comes on fine and there doesn't appear to be damage anywere.
I also took out the motherboard with just the CPU on it and tried turning it on that way, but still nothing so I don't think this is a ground issue. I also tried the old motherboard that I replaced and even that wasn't getting power.