Hi, I just installed fresh 10.11.4 on a old macbook pro 15" late 2007 with SSD. Works really well. My only issues is that when i press restart it is being delayed. The closing period when the circle that shows its closing its relatively short, but afterwards there is a black screen period that is like 15 seconds long until it restarts. I did a SMC reset, PRAM reset, Disk utility aid on drive. If i shut it down and turn it on it works like a charm, only at restart it has a 15 sec delay. Anybody knows why?