Latitude - Intermittent Cold Boot Up issues - E6530

Hi-

We have a dell e6530.

It is a documented issue that the following can happen:

1) Pressing the power button causes the light to be on but a black screen to show

2) after 15 times eventually it boots to windows

I've seen alot of responses that say "run diagnostics" or remove the battery and ac.

Has anyone else had this issue? Does it need a new motherboard? Someone even mentioned to flick the hinge with the laptop closed.

Anyone have any ideas on a solution that would work?

Thanks again.