Black screen on startup after CPU upgrade

By Golden122
Aug 1, 2010
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  1. About a week ago I ordered a new CPU & power supply for my PC. After installing the Power supply I turned it on to make sure I connected everything. It booted up just fine went into windows then I shut it down.

    When I put the new CPU in I had a hard time installing the CPU fan, and eventually just gave up on it and put my old one on as a place holder. It booted up to a black screen. I thought maybe it wasn't compatible as It is a 140w cpu and my old one is a 125w. So I switched it out for my old CPU and I've still got the black screen.

    When I turn it on all the fans start up, the LED on my motherboard is solid green. I hear no beeps.

    -I've checked to make sure everything's connected, even unplugged everything and plugged it back in.
    -I've tested my ram sticks by using one at a time then placing them in different slots.
    -I've reset the bios by removing the battery overnight.
    -The monitor works, because I'm using it right now on a backup PC.
  2. mailpup

    mailpup TS Special Forces Posts: 7,186   +469

    I don't know if I have the answer but start by giving the specifics of your system. What CPU, power supply, motherboard, RAM, etc do you have?

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