[Tyler McAdams]

I rearranged some cables in my G4 and now when I hit the power button it flashes but does not turn on... anybody know what that means?

[reader50]

How many flashes? It will flash a certain number of times, pause, and repeat.

[Tyler McAdams]

This only flashes once.... when I hit it. When i hit it and hold down it still only flashes once.

[outsourced]

Originally Posted by Tyler McAdams

This only flashes once.... when I hit it. When i hit it and hold down it still only flashes once.

Try starting the system with nothing plugged into it -- even the video cable. If it starts, you can always hold in the Power button until it shuts down.

If that fails, try these:
Resetting the PMU chip: http://docs.info.apple.com/article.html?artnum=95037

See the entire article here: http://docs.info.apple.com/article.html?artnum=95054

Hope this helps.

P.S.: Did you say IN your computer?

[Tyler McAdams]

Thanks fellas... it turned out that underneath a mad and twisted bunch of sata cables my power connector to the logic board had come a tad loose. For a second there I thought maybe my PSU had blown... whew!