D800 Laptop

If it was off and not running then the most obvious thing is that something has come loose or the HDD has been destroyed depending on how it hit the floor & at what angle.

If it was running then it's almost certain that the HDD is dead and more importantly the M'Board has suffered some damage which is preventing the unit from POSTing successfully.

Depending on what is required here it may be better to trash the NB and just recover any Data off the HDD if cheap and easy to do but this will require a trip to either the companies IT Department or a Repairer.

As for a Reset Switch no this unit doesn't have one and if it did the unit wouldn't turn on so you would not see any form of a display on the monitor. If you see even the very first screen the unit is working at some level so that means that at least the CPU & 1 Stick of RAM are seated correctly.

Have you tried entering BIOS? It's possible that the BIOS is set to [b]Stop On All Errors[/b] and that is what is happening. If not then you need to look at sending it to someone who is capable of repairing the unit and knows what it is that they are doing as the chances of doing far more damage that you can possibly fix are way too great.

I've seen one NB brought in for repair that originally had a Flat BIOS Battery and in an attempt to save some money the owner dropped the Screen destroying it and the M'Board as well when the wires tore off the M'Board breaking the header strip. This person also broke all the small plastic covers attempting to get them off but that was minor compared to the other Self Inflected Damage done.

Col