MacBook Pro no startup sound, and not able to start
My MBP A1260 just died, nothing special lead up to this. It have been trustfully been working for 2.5 years.
No startup sound or picture, though the superdrive does it regular startup thing, the fans start (normal speed) and the on/off light comes on when I power it on. This is what I have tried:
- Startup with external screen
- Disconnected all external devices
- Reset PRAM and SMC
- Power up with or without battery
- Startup without RAM and tried on by one of the ram chip's
- Opened it up and tried starting without:
- Hard drive
- iSight camera
- Disconnected-connected all accessible (from the "top) connectors
I even coneccted an older battery to check if the poweradaptor is able to charge it, and that looks OK.
Currently running out of ideas here, anyone? I'm I looking on a dead main board here?
Best regards Stein
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Hi mayer, thanks for answering :)
Yes, the magsafe lights up as normal, and it charges the battery and my spare one as normal (checked the power bars). Holding C during startup give me nothing.
There's nothing to give me a clue. Outside of switching the logic board to another machine, I really have no idea of where to go.
I'll currently running on my backup computer but I'll have another go with it as soon as I find the time or I'll drop it off at my local Apple shop, even just to get the diagnostic from them.
Very well stated question and troubleshooting. +
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