What does no chime on boot suggest?

My MacBook Pro is having some concerns. It boots. Yet the graphics card does not get identified. You can remote in to it yet considering the Displays dialog in System Preferences, no graphics card is revealed:

enter image description here

I took it in to see if it got the free mobo substitute due to the fact that it does have the certifying NVidia chipset and also the service center claimed they could not run the diagnostics device on it due to the fact that it would not chime on boot. And also consequently would not boot from their exterior drive to run their diagnostics. I had not seen that it would not chime on boot.

Yet what does that suggest? What does the chime inform you? Why would certainly the equipment not chime?

2019-05-09 11:39:09
Source Share
Answers: 3

As an apart, the quantity of the chime is controlled by the os - the Mac will certainly bear in mind just how you had your quantity set when you last closed it down. If you made your Mac mute, you will not listen to a chime on start-up.

It could be worth connecting in a set of earphones - it's not likely that you would certainly have set the quantity 'with earphones' to be mute, and also as the Mac bears in mind a degree for 'regular' and also a degree for 'earphones', you could listen to a chime.

Still, any kind of suitable Genius Bar team would certainly have recognized that you can make the chime go quiet in this manner so I'm presuming it's even more significant than this!

2019-05-10 18:35:08

It generally suggests the Power On Self - Test fell short. Seek a mistake code as tones, blinking LEDS, or whatever continuing to be suggests the certain computer system has of connecting. There's a suitable run-through of the startup sequence here.

2019-05-10 18:28:58

You do not define just how old your MBP is, yet some MBPs constructed a couple of years ago delivered with graphics cards that fatally collapsed after a couple of years of years. That's what took place to extract and also it was a service warranty solution due to the fact that a recall was done.

My understanding of the chime is that it is tough - coded right into the motherboard. If it is not having fun with the chime, after that you possibly have glitch to that degree. It might be a straightforward solution, it might not, yet just Apple will certainly have the ability to inform you definitively.

(Answer modified per remarks)

2019-05-10 07:29:44