Hi There,

My Optiplex 3040 is not booting.  No Lights.  No Post.  Dead.

The power button does not turn it on.

Steps taken thus far:

1. Unplugged all cables for 30min.  Replugged and powered on - failed.  No lights.  No post.  Dead.
2. Unplug power cable from from wall.  Unplug power cable from PC.  Hold down power button for 1+minute.  Replugged power cabled.  Failed.
3. Unplug power cable from from wall.  Unplug power cable from PC.  Hold down power button for 1+minute.  Hold down Selft Test button on the back of PC. Replugged power cable.  Failed.
4. Unplugged all cables.  Opened case.  Used canned air to dust components.  RAM, Powersupply, CPU, etc..  Not very dusty to begin with.  Replugged.  Failed.
5. With Power cable plugged in.  Pressed Self Test button.  LED next to self test button turned on, fans turned on.  No post.

Any suggestions would be very much appreciated.