Help!, I have an old HP Pavilion with the TriGem Cognac motherboard and I opened it up this weekend to look at the memory card. I must have pulled a wire out of it's socket because when I put it back together, when I powered it back up, nothing showed up in the screen. I finally saw a 4 wire cable with a yellow, blue and 2 black wires and what looks like a white(female) sockets. The 4 wires are next to each other inline. I can't seem to find where it is hooked up to. I only see a 3 wire inline with a 2 wire in front of it. I also see a 4 wire inline with a 5 wire in front of it. I tried the 4 wire and it still did not work. I even tried the 5 wire. That did not power the machine at all. Can anybody help me?

That sounds like a power connector. Power supplies have many "spares" and it may not have been connected to anything. The reason for your computer's symptoms may be unrelated to this plug.

Or, it sounds like a proprietary power connection. I'll look around and get back to you. What is the model of your hp? Skip