So those running HP MediaSmart Home Server, just follow these steps to activate the Easter Egg:
-Launch the Home Server Console by double clicking on the tray icon.
-Hold down the Ctrl + Alt + Shift keys and click on the picture of the computer next to the LED brightness control.
-The control changes to "HP MediaSmart Server LED Light Show"
You can now select from the following options:
-Default System Lights
-Holiday Lights (perfect for this time of year)
-Descending Chasers (in blue, red or purple)
-Ascending Chasers (in blue, red or purple)
-Pulsing (in all colors)
-Night Rider (in all colors)
-Morse Code Credits (Yet to be decoded)
Check out the video of the same here.