I only turned it on to see if it would actually switch on.
You see, I had a bit of Red Wine Damage *oop* I let it dry out for about a week and it wouldn't switch on.
I needed the hardrive so took the whole thing apart. A week later I put it all together inc Hardrive so I could take it to apple store for diagnostics. It must of dried out properly when I took it apart because Hey Presto! It booted up, but the keyboard didnt work.
To cut a long story short Apple wanted to charge me £600 to fix which is crazy, they basically replace anything that the wine has touched. I got it back and am just waiting for a new topcase and keyboard that I sourced. Hopefully it will work again!